20868710

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{34211}}^1$

素因数の和:34279

約数の個数: 16

約数和(自身を含む): 38180592

約数和(自身を除く): 17311882

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 34211, 68422, 171055, 342110, 2086871, 4173742, 10434355, 20868710]

約数ペア:

[(1, 20868710), (2, 10434355), (5, 4173742), (10, 2086871), (61, 342110), (122, 171055), (305, 68422), (610, 34211)]