21136339721

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{494267}}^1$

素因数の和:494464

約数の個数: 16

約数和(自身を含む): 24911107200

約数和(自身を除く): 3774767479

約数列:

[1, 7, 41, 149, 287, 1043, 6109, 42763, 494267, 3459869, 20264947, 73645783, 141854629, 515520481, 3019477103, 21136339721]

約数ペア:

[(1, 21136339721), (7, 3019477103), (41, 515520481), (149, 141854629), (287, 73645783), (1043, 20264947), (6109, 3459869), (42763, 494267)]