18406994

素因数分解:

$2^1\times {\mathrm{31}}^2\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:282

約数の個数: 24

約数和(自身を含む): 29182284

約数和(自身を除く): 10775290

約数列:

[1, 2, 31, 61, 62, 122, 157, 314, 961, 1891, 1922, 3782, 4867, 9577, 9734, 19154, 58621, 117242, 150877, 296887, 301754, 593774, 9203497, 18406994]

約数ペア:

[(1, 18406994), (2, 9203497), (31, 593774), (61, 301754), (62, 296887), (122, 150877), (157, 117242), (314, 58621), (961, 19154), (1891, 9734), (1922, 9577), (3782, 4867)]