16819499905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{70913}}^1$

素因数の和:71061

約数の個数: 32

約数和(自身を含む): 22516613280

約数和(自身を除く): 5697113375

約数列:

[1, 5, 13, 41, 65, 89, 205, 445, 533, 1157, 2665, 3649, 5785, 18245, 47437, 70913, 237185, 354565, 921869, 2907433, 4609345, 6311257, 14537165, 31556285, 37796629, 82046341, 188983145, 258761537, 410231705, 1293807685, 3363899981, 16819499905]

約数ペア:

[(1, 16819499905), (5, 3363899981), (13, 1293807685), (41, 410231705), (65, 258761537), (89, 188983145), (205, 82046341), (445, 37796629), (533, 31556285), (1157, 14537165), (2665, 6311257), (3649, 4609345), (5785, 2907433), (18245, 921869), (47437, 354565), (70913, 237185)]