18718892

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{1601}}^1$

素因数の和:1721

約数の個数: 24

約数和(自身を含む): 34090560

約数和(自身を除く): 15371668

約数列:

[1, 2, 4, 37, 74, 79, 148, 158, 316, 1601, 2923, 3202, 5846, 6404, 11692, 59237, 118474, 126479, 236948, 252958, 505916, 4679723, 9359446, 18718892]

約数ペア:

[(1, 18718892), (2, 9359446), (4, 4679723), (37, 505916), (74, 252958), (79, 236948), (148, 126479), (158, 118474), (316, 59237), (1601, 11692), (2923, 6404), (3202, 5846)]