20619544

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{4421}}^1$

素因数の和:4491

約数の個数: 32

約数和(自身を含む): 42981840

約数和(自身を除く): 22362296

約数列:

[1, 2, 4, 8, 11, 22, 44, 53, 88, 106, 212, 424, 583, 1166, 2332, 4421, 4664, 8842, 17684, 35368, 48631, 97262, 194524, 234313, 389048, 468626, 937252, 1874504, 2577443, 5154886, 10309772, 20619544]

約数ペア:

[(1, 20619544), (2, 10309772), (4, 5154886), (8, 2577443), (11, 1874504), (22, 937252), (44, 468626), (53, 389048), (88, 234313), (106, 194524), (212, 97262), (424, 48631), (583, 35368), (1166, 17684), (2332, 8842), (4421, 4664)]