21808710

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1049}}^1$

素因数の和:1083

約数の個数: 128

約数和(自身を含む): 72576000

約数和(自身を除く): 50767290

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, 1049, 1155, 1386, 1485, 1890, 2079, 2098, 2310, 2970, 3147, 3465, 4158, 5245, 6294, 6930, 7343, 9441, 10395, 10490, 11539, 14686, 15735, 18882, 20790, 22029, 23078, 28323, 31470, 34617, 36715, 44058, 47205, 56646, 57695, 66087, 69234, 73430, 80773, 94410, 103851, 110145, 115390, 132174, 141615, 161546, 173085, 198261, 207702, 220290, 242319, 283230, 311553, 330435, 346170, 396522, 403865, 484638, 519255, 623106, 660870, 726957, 807730, 991305, 1038510, 1211595, 1453914, 1557765, 1982610, 2180871, 2423190, 3115530, 3634785, 4361742, 7269570, 10904355, 21808710]

約数ペア:

[(1, 21808710), (2, 10904355), (3, 7269570), (5, 4361742), (6, 3634785), (7, 3115530), (9, 2423190), (10, 2180871), (11, 1982610), (14, 1557765), (15, 1453914), (18, 1211595), (21, 1038510), (22, 991305), (27, 807730), (30, 726957), (33, 660870), (35, 623106), (42, 519255), (45, 484638), (54, 403865), (55, 396522), (63, 346170), (66, 330435), (70, 311553), (77, 283230), (90, 242319), (99, 220290), (105, 207702), (110, 198261), (126, 173085), (135, 161546), (154, 141615), (165, 132174), (189, 115390), (198, 110145), (210, 103851), (231, 94410), (270, 80773), (297, 73430), (315, 69234), (330, 66087), (378, 57695), (385, 56646), (462, 47205), (495, 44058), (594, 36715), (630, 34617), (693, 31470), (770, 28323), (945, 23078), (990, 22029), (1049, 20790), (1155, 18882), (1386, 15735), (1485, 14686), (1890, 11539), (2079, 10490), (2098, 10395), (2310, 9441), (2970, 7343), (3147, 6930), (3465, 6294), (4158, 5245)]