21991684

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{38447}}^1$

素因数の和:38475

約数の個数: 24

約数和(自身を含む): 45214848

約数和(自身を除く): 23223164

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572, 38447, 76894, 153788, 422917, 499811, 845834, 999622, 1691668, 1999244, 5497921, 10995842, 21991684]

約数ペア:

[(1, 21991684), (2, 10995842), (4, 5497921), (11, 1999244), (13, 1691668), (22, 999622), (26, 845834), (44, 499811), (52, 422917), (143, 153788), (286, 76894), (572, 38447)]