19651684

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{1231}}^1$

素因数の和:1555

約数の個数: 24

約数和(自身を含む): 37186688

約数和(自身を除く): 17535004

約数列:

[1, 2, 4, 13, 26, 52, 307, 614, 1228, 1231, 2462, 3991, 4924, 7982, 15964, 16003, 32006, 64012, 377917, 755834, 1511668, 4912921, 9825842, 19651684]

約数ペア:

[(1, 19651684), (2, 9825842), (4, 4912921), (13, 1511668), (26, 755834), (52, 377917), (307, 64012), (614, 32006), (1228, 16003), (1231, 15964), (2462, 7982), (3991, 4924)]