20640631

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1619}}^1$

素因数の和:1710

約数の個数: 16

約数和(自身を含む): 24105600

約数和(自身を除く): 3464969

約数列:

[1, 11, 19, 61, 209, 671, 1159, 1619, 12749, 17809, 30761, 98759, 338371, 1086349, 1876421, 20640631]

約数ペア:

[(1, 20640631), (11, 1876421), (19, 1086349), (61, 338371), (209, 98759), (671, 30761), (1159, 17809), (1619, 12749)]