21529264

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{887}}^1$

素因数の和:973

約数の個数: 40

約数和(自身を含む): 43934688

約数和(自身を除く): 22405424

約数列:

[1, 2, 4, 8, 16, 37, 41, 74, 82, 148, 164, 296, 328, 592, 656, 887, 1517, 1774, 3034, 3548, 6068, 7096, 12136, 14192, 24272, 32819, 36367, 65638, 72734, 131276, 145468, 262552, 290936, 525104, 581872, 1345579, 2691158, 5382316, 10764632, 21529264]

約数ペア:

[(1, 21529264), (2, 10764632), (4, 5382316), (8, 2691158), (16, 1345579), (37, 581872), (41, 525104), (74, 290936), (82, 262552), (148, 145468), (164, 131276), (296, 72734), (328, 65638), (592, 36367), (656, 32819), (887, 24272), (1517, 14192), (1774, 12136), (3034, 7096), (3548, 6068)]