81390438

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{145861}}^1$

素因数の和:145900

約数の個数: 24

約数和(自身を含む): 182035776

約数和(自身を除く): 100645338

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 279, 558, 145861, 291722, 437583, 875166, 1312749, 2625498, 4521691, 9043382, 13565073, 27130146, 40695219, 81390438]

約数ペア:

[(1, 81390438), (2, 40695219), (3, 27130146), (6, 13565073), (9, 9043382), (18, 4521691), (31, 2625498), (62, 1312749), (93, 875166), (186, 437583), (279, 291722), (558, 145861)]