21070564

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{509}}^1$

素因数の和:723

約数の個数: 24

約数和(自身を含む): 37699200

約数和(自身を除く): 16628636

約数列:

[1, 2, 4, 79, 131, 158, 262, 316, 509, 524, 1018, 2036, 10349, 20698, 40211, 41396, 66679, 80422, 133358, 160844, 266716, 5267641, 10535282, 21070564]

約数ペア:

[(1, 21070564), (2, 10535282), (4, 5267641), (79, 266716), (131, 160844), (158, 133358), (262, 80422), (316, 66679), (509, 41396), (524, 40211), (1018, 20698), (2036, 10349)]