18805774

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{271}}^1$

素因数の和:460

約数の個数: 32

約数和(自身を含む): 32489856

約数和(自身を除く): 13684082

約数列:

[1, 2, 13, 17, 26, 34, 157, 221, 271, 314, 442, 542, 2041, 2669, 3523, 4082, 4607, 5338, 7046, 9214, 34697, 42547, 59891, 69394, 85094, 119782, 553111, 723299, 1106222, 1446598, 9402887, 18805774]

約数ペア:

[(1, 18805774), (2, 9402887), (13, 1446598), (17, 1106222), (26, 723299), (34, 553111), (157, 119782), (221, 85094), (271, 69394), (314, 59891), (442, 42547), (542, 34697), (2041, 9214), (2669, 7046), (3523, 5338), (4082, 4607)]