19129721

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{467}}^1$

素因数の和:640

約数の個数: 16

約数和(自身を含む): 21700224

約数和(自身を除く): 2570503

約数列:

[1, 13, 23, 137, 299, 467, 1781, 3151, 6071, 10741, 40963, 63979, 139633, 831727, 1471517, 19129721]

約数ペア:

[(1, 19129721), (13, 1471517), (23, 831727), (137, 139633), (299, 63979), (467, 40963), (1781, 10741), (3151, 6071)]