21167972390

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{563}}^1\times {\mathrm{197887}}^1$

素因数の和:198476

約数の個数: 32

約数和(自身を含む): 40179179520

約数和(自身を除く): 19011207130

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 563, 1126, 2815, 5630, 10697, 21394, 53485, 106970, 197887, 395774, 989435, 1978870, 3759853, 7519706, 18799265, 37598530, 111410381, 222820762, 557051905, 1114103810, 2116797239, 4233594478, 10583986195, 21167972390]

約数ペア:

[(1, 21167972390), (2, 10583986195), (5, 4233594478), (10, 2116797239), (19, 1114103810), (38, 557051905), (95, 222820762), (190, 111410381), (563, 37598530), (1126, 18799265), (2815, 7519706), (5630, 3759853), (10697, 1978870), (21394, 989435), (53485, 395774), (106970, 197887)]