220123239

素因数分解:

$3^1\times 7^2\times {\mathrm{587}}^1\times {\mathrm{2551}}^1$

素因数の和:3155

約数の個数: 24

約数和(自身を含む): 342131328

約数和(自身を除く): 122008089

約数列:

[1, 3, 7, 21, 49, 147, 587, 1761, 2551, 4109, 7653, 12327, 17857, 28763, 53571, 86289, 124999, 374997, 1497437, 4492311, 10482059, 31446177, 73374413, 220123239]

約数ペア:

[(1, 220123239), (3, 73374413), (7, 31446177), (21, 10482059), (49, 4492311), (147, 1497437), (587, 374997), (1761, 124999), (2551, 86289), (4109, 53571), (7653, 28763), (12327, 17857)]