21422401

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{21401}}^1$

素因数の和:21432

約数の個数: 16

約数和(自身を含む): 28764288

約数和(自身を除く): 7341887

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 21401, 149807, 235411, 278213, 1647877, 1947491, 3060343, 21422401]

約数ペア:

[(1, 21422401), (7, 3060343), (11, 1947491), (13, 1647877), (77, 278213), (91, 235411), (143, 149807), (1001, 21401)]