28031311

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{9839}}^1$

素因数の和:9894

約数の個数: 16

約数和(自身を含む): 35896320

約数和(自身を除く): 7865009

約数列:

[1, 7, 11, 37, 77, 259, 407, 2849, 9839, 68873, 108229, 364043, 757603, 2548301, 4004473, 28031311]

約数ペア:

[(1, 28031311), (7, 4004473), (11, 2548301), (37, 757603), (77, 364043), (259, 108229), (407, 68873), (2849, 9839)]