21164220

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{509}}^1$

素因数の和:545

約数の個数: 192

約数和(自身を含む): 82252800

約数和(自身を除く): 61088580

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 27, 28, 30, 33, 35, 36, 42, 44, 45, 54, 55, 60, 63, 66, 70, 77, 84, 90, 99, 105, 108, 110, 126, 132, 135, 140, 154, 165, 180, 189, 198, 210, 220, 231, 252, 270, 297, 308, 315, 330, 378, 385, 396, 420, 462, 495, 509, 540, 594, 630, 660, 693, 756, 770, 924, 945, 990, 1018, 1155, 1188, 1260, 1386, 1485, 1527, 1540, 1890, 1980, 2036, 2079, 2310, 2545, 2772, 2970, 3054, 3465, 3563, 3780, 4158, 4581, 4620, 5090, 5599, 5940, 6108, 6930, 7126, 7635, 8316, 9162, 10180, 10395, 10689, 11198, 13743, 13860, 14252, 15270, 16797, 17815, 18324, 20790, 21378, 22396, 22905, 27486, 27995, 30540, 32067, 33594, 35630, 39193, 41580, 42756, 45810, 50391, 53445, 54972, 55990, 64134, 67188, 68715, 71260, 78386, 83985, 91620, 96201, 100782, 106890, 111980, 117579, 128268, 137430, 151173, 156772, 160335, 167970, 192402, 195965, 201564, 213780, 235158, 251955, 274860, 302346, 320670, 335940, 352737, 384804, 391930, 470316, 481005, 503910, 587895, 604692, 641340, 705474, 755865, 783860, 962010, 1007820, 1058211, 1175790, 1410948, 1511730, 1763685, 1924020, 2116422, 2351580, 3023460, 3527370, 4232844, 5291055, 7054740, 10582110, 21164220]

約数ペア:

[(1, 21164220), (2, 10582110), (3, 7054740), (4, 5291055), (5, 4232844), (6, 3527370), (7, 3023460), (9, 2351580), (10, 2116422), (11, 1924020), (12, 1763685), (14, 1511730), (15, 1410948), (18, 1175790), (20, 1058211), (21, 1007820), (22, 962010), (27, 783860), (28, 755865), (30, 705474), (33, 641340), (35, 604692), (36, 587895), (42, 503910), (44, 481005), (45, 470316), (54, 391930), (55, 384804), (60, 352737), (63, 335940), (66, 320670), (70, 302346), (77, 274860), (84, 251955), (90, 235158), (99, 213780), (105, 201564), (108, 195965), (110, 192402), (126, 167970), (132, 160335), (135, 156772), (140, 151173), (154, 137430), (165, 128268), (180, 117579), (189, 111980), (198, 106890), (210, 100782), (220, 96201), (231, 91620), (252, 83985), (270, 78386), (297, 71260), (308, 68715), (315, 67188), (330, 64134), (378, 55990), (385, 54972), (396, 53445), (420, 50391), (462, 45810), (495, 42756), (509, 41580), (540, 39193), (594, 35630), (630, 33594), (660, 32067), (693, 30540), (756, 27995), (770, 27486), (924, 22905), (945, 22396), (990, 21378), (1018, 20790), (1155, 18324), (1188, 17815), (1260, 16797), (1386, 15270), (1485, 14252), (1527, 13860), (1540, 13743), (1890, 11198), (1980, 10689), (2036, 10395), (2079, 10180), (2310, 9162), (2545, 8316), (2772, 7635), (2970, 7126), (3054, 6930), (3465, 6108), (3563, 5940), (3780, 5599), (4158, 5090), (4581, 4620)]