18245997

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{233}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 33291648

約数和(自身を除く): 15045651

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 113, 231, 233, 339, 693, 699, 791, 1017, 1243, 1631, 2097, 2373, 2563, 3729, 4893, 7119, 7689, 8701, 11187, 14679, 17941, 23067, 26103, 26329, 53823, 78309, 78987, 161469, 184303, 236961, 289619, 552909, 868857, 1658727, 2027333, 2606571, 6081999, 18245997]

約数ペア:

[(1, 18245997), (3, 6081999), (7, 2606571), (9, 2027333), (11, 1658727), (21, 868857), (33, 552909), (63, 289619), (77, 236961), (99, 184303), (113, 161469), (231, 78987), (233, 78309), (339, 53823), (693, 26329), (699, 26103), (791, 23067), (1017, 17941), (1243, 14679), (1631, 11187), (2097, 8701), (2373, 7689), (2563, 7119), (3729, 4893)]