21109294

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{2437}}^1$

素因数の和:2571

約数の個数: 16

約数和(自身を含む): 32649696

約数和(自身を除く): 11540402

約数列:

[1, 2, 61, 71, 122, 142, 2437, 4331, 4874, 8662, 148657, 173027, 297314, 346054, 10554647, 21109294]

約数ペア:

[(1, 21109294), (2, 10554647), (61, 346054), (71, 297314), (122, 173027), (142, 148657), (2437, 8662), (4331, 4874)]