18712746

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{379}}^1$

素因数の和:611

約数の個数: 48

約数和(自身を含む): 43985760

約数和(自身を除く): 25273014

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 211, 234, 379, 422, 633, 758, 1137, 1266, 1899, 2274, 2743, 3411, 3798, 4927, 5486, 6822, 8229, 9854, 14781, 16458, 24687, 29562, 44343, 49374, 79969, 88686, 159938, 239907, 479814, 719721, 1039597, 1439442, 2079194, 3118791, 6237582, 9356373, 18712746]

約数ペア:

[(1, 18712746), (2, 9356373), (3, 6237582), (6, 3118791), (9, 2079194), (13, 1439442), (18, 1039597), (26, 719721), (39, 479814), (78, 239907), (117, 159938), (211, 88686), (234, 79969), (379, 49374), (422, 44343), (633, 29562), (758, 24687), (1137, 16458), (1266, 14781), (1899, 9854), (2274, 8229), (2743, 6822), (3411, 5486), (3798, 4927)]