20919908710

素因数分解:

$2^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{10619243}}^1$

素因数の和:10619447

約数の個数: 16

約数和(自身を含む): 37846985616

約数和(自身を除く): 16927076906

約数列:

[1, 2, 5, 10, 197, 394, 985, 1970, 10619243, 21238486, 53096215, 106192430, 2091990871, 4183981742, 10459954355, 20919908710]

約数ペア:

[(1, 20919908710), (2, 10459954355), (5, 4183981742), (10, 2091990871), (197, 106192430), (394, 53096215), (985, 21238486), (1970, 10619243)]