21249070

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{51827}}^1$

素因数の和:51875

約数の個数: 16

約数和(自身を含む): 39181968

約数和(自身を除く): 17932898

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 51827, 103654, 259135, 518270, 2124907, 4249814, 10624535, 21249070]

約数ペア:

[(1, 21249070), (2, 10624535), (5, 4249814), (10, 2124907), (41, 518270), (82, 259135), (205, 103654), (410, 51827)]