18834739

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{601}}^1$

素因数の和:667

約数の個数: 24

約数和(自身を含む): 24340064

約数和(自身を除く): 5505325

約数列:

[1, 7, 11, 37, 77, 121, 259, 407, 601, 847, 2849, 4207, 4477, 6611, 22237, 31339, 46277, 72721, 155659, 244607, 509047, 1712249, 2690677, 18834739]

約数ペア:

[(1, 18834739), (7, 2690677), (11, 1712249), (37, 509047), (77, 244607), (121, 155659), (259, 72721), (407, 46277), (601, 31339), (847, 22237), (2849, 6611), (4207, 4477)]