21577612310

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{569}}^1\times {\mathrm{821}}^1$

素因数の和:1577

約数の個数: 64

約数和(自身を含む): 40481856000

約数和(自身を除く): 18904243690

約数列:

[1, 2, 5, 10, 31, 62, 149, 155, 298, 310, 569, 745, 821, 1138, 1490, 1642, 2845, 4105, 4619, 5690, 8210, 9238, 17639, 23095, 25451, 35278, 46190, 50902, 84781, 88195, 122329, 127255, 169562, 176390, 244658, 254510, 423905, 467149, 611645, 847810, 934298, 1223290, 2335745, 2628211, 3792199, 4671490, 5256422, 7584398, 13141055, 14481619, 18960995, 26282110, 28963238, 37921990, 69605201, 72408095, 139210402, 144816190, 348026005, 696052010, 2157761231, 4315522462, 10788806155, 21577612310]

約数ペア:

[(1, 21577612310), (2, 10788806155), (5, 4315522462), (10, 2157761231), (31, 696052010), (62, 348026005), (149, 144816190), (155, 139210402), (298, 72408095), (310, 69605201), (569, 37921990), (745, 28963238), (821, 26282110), (1138, 18960995), (1490, 14481619), (1642, 13141055), (2845, 7584398), (4105, 5256422), (4619, 4671490), (5690, 3792199), (8210, 2628211), (9238, 2335745), (17639, 1223290), (23095, 934298), (25451, 847810), (35278, 611645), (46190, 467149), (50902, 423905), (84781, 254510), (88195, 244658), (122329, 176390), (127255, 169562)]