12890778887

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{42101}}^1$

素因数の和:42239

約数の個数: 32

約数和(自身を含む): 16296505344

約数和(自身を除く): 3405726457

約数列:

[1, 7, 17, 31, 83, 119, 217, 527, 581, 1411, 2573, 3689, 9877, 18011, 42101, 43741, 294707, 306187, 715717, 1305131, 3494383, 5010019, 9135917, 22187227, 24460681, 59404511, 108325873, 155310589, 415831577, 758281111, 1841539841, 12890778887]

約数ペア:

[(1, 12890778887), (7, 1841539841), (17, 758281111), (31, 415831577), (83, 155310589), (119, 108325873), (217, 59404511), (527, 24460681), (581, 22187227), (1411, 9135917), (2573, 5010019), (3689, 3494383), (9877, 1305131), (18011, 715717), (42101, 306187), (43741, 294707)]