81521316

素因数分解:

$2^2\times 3^4\times {\mathrm{251609}}^1$

素因数の和:251625

約数の個数: 30

約数和(自身を含む): 213113670

約数和(自身を除く): 131592354

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 251609, 503218, 754827, 1006436, 1509654, 2264481, 3019308, 4528962, 6793443, 9057924, 13586886, 20380329, 27173772, 40760658, 81521316]

約数ペア:

[(1, 81521316), (2, 40760658), (3, 27173772), (4, 20380329), (6, 13586886), (9, 9057924), (12, 6793443), (18, 4528962), (27, 3019308), (36, 2264481), (54, 1509654), (81, 1006436), (108, 754827), (162, 503218), (324, 251609)]