20977110

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1009}}^1$

素因数の和:1043

約数の個数: 128

約数和(自身を含む): 69811200

約数和(自身を除く): 48834090

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 27, 30, 33, 35, 42, 45, 54, 55, 63, 66, 70, 77, 90, 99, 105, 110, 126, 135, 154, 165, 189, 198, 210, 231, 270, 297, 315, 330, 378, 385, 462, 495, 594, 630, 693, 770, 945, 990, 1009, 1155, 1386, 1485, 1890, 2018, 2079, 2310, 2970, 3027, 3465, 4158, 5045, 6054, 6930, 7063, 9081, 10090, 10395, 11099, 14126, 15135, 18162, 20790, 21189, 22198, 27243, 30270, 33297, 35315, 42378, 45405, 54486, 55495, 63567, 66594, 70630, 77693, 90810, 99891, 105945, 110990, 127134, 136215, 155386, 166485, 190701, 199782, 211890, 233079, 272430, 299673, 317835, 332970, 381402, 388465, 466158, 499455, 599346, 635670, 699237, 776930, 953505, 998910, 1165395, 1398474, 1498365, 1907010, 2097711, 2330790, 2996730, 3496185, 4195422, 6992370, 10488555, 20977110]

約数ペア:

[(1, 20977110), (2, 10488555), (3, 6992370), (5, 4195422), (6, 3496185), (7, 2996730), (9, 2330790), (10, 2097711), (11, 1907010), (14, 1498365), (15, 1398474), (18, 1165395), (21, 998910), (22, 953505), (27, 776930), (30, 699237), (33, 635670), (35, 599346), (42, 499455), (45, 466158), (54, 388465), (55, 381402), (63, 332970), (66, 317835), (70, 299673), (77, 272430), (90, 233079), (99, 211890), (105, 199782), (110, 190701), (126, 166485), (135, 155386), (154, 136215), (165, 127134), (189, 110990), (198, 105945), (210, 99891), (231, 90810), (270, 77693), (297, 70630), (315, 66594), (330, 63567), (378, 55495), (385, 54486), (462, 45405), (495, 42378), (594, 35315), (630, 33297), (693, 30270), (770, 27243), (945, 22198), (990, 21189), (1009, 20790), (1155, 18162), (1386, 15135), (1485, 14126), (1890, 11099), (2018, 10395), (2079, 10090), (2310, 9081), (2970, 7063), (3027, 6930), (3465, 6054), (4158, 5045)]