21041004070

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{213203}}^1$

素因数の和:213420

約数の個数: 32

約数和(自身を含む): 38683733760

約数和(自身を除く): 17642729690

約数列:

[1, 2, 5, 10, 71, 139, 142, 278, 355, 695, 710, 1390, 9869, 19738, 49345, 98690, 213203, 426406, 1066015, 2132030, 15137413, 29635217, 30274826, 59270434, 75687065, 148176085, 151374130, 296352170, 2104100407, 4208200814, 10520502035, 21041004070]

約数ペア:

[(1, 21041004070), (2, 10520502035), (5, 4208200814), (10, 2104100407), (71, 296352170), (139, 151374130), (142, 148176085), (278, 75687065), (355, 59270434), (695, 30274826), (710, 29635217), (1390, 15137413), (9869, 2132030), (19738, 1066015), (49345, 426406), (98690, 213203)]