21000786773

素因数分解:

${\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{3329}}^1\times {\mathrm{5443}}^1$

素因数の和:8852

約数の個数: 16

約数和(自身を含む): 22479364800

約数和(自身を除く): 1478578027

約数列:

[1, 19, 61, 1159, 3329, 5443, 63251, 103417, 203069, 332023, 3858311, 6308437, 18119747, 344275193, 1105304567, 21000786773]

約数ペア:

[(1, 21000786773), (19, 1105304567), (61, 344275193), (1159, 18119747), (3329, 6308437), (5443, 3858311), (63251, 332023), (103417, 203069)]