20219765

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{1861}}^1$

素因数の和:1960

約数の個数: 16

約数和(自身を含む): 25338096

約数和(自身を除く): 5118331

約数列:

[1, 5, 41, 53, 205, 265, 1861, 2173, 9305, 10865, 76301, 98633, 381505, 493165, 4043953, 20219765]

約数ペア:

[(1, 20219765), (5, 4043953), (41, 493165), (53, 381505), (205, 98633), (265, 76301), (1861, 10865), (2173, 9305)]