19811243866

素因数分解:

$2^1\times {\mathrm{181}}^1\times {\mathrm{787}}^1\times {\mathrm{69539}}^1$

素因数の和:70509

約数の個数: 16

約数和(自身を含む): 29919445920

約数和(自身を除く): 10108202054

約数列:

[1, 2, 181, 362, 787, 1574, 69539, 139078, 142447, 284894, 12586559, 25173118, 54727193, 109454386, 9905621933, 19811243866]

約数ペア:

[(1, 19811243866), (2, 9905621933), (181, 109454386), (362, 54727193), (787, 25173118), (1574, 12586559), (69539, 284894), (139078, 142447)]