18934727

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{317}}^1$

素因数の和:407

約数の個数: 24

約数和(自身を含む): 23491296

約数和(自身を除く): 4556569

約数列:

[1, 7, 23, 49, 53, 161, 317, 371, 1127, 1219, 2219, 2597, 7291, 8533, 15533, 16801, 51037, 59731, 117607, 357259, 386423, 823249, 2704961, 18934727]

約数ペア:

[(1, 18934727), (7, 2704961), (23, 823249), (49, 386423), (53, 357259), (161, 117607), (317, 59731), (371, 51037), (1127, 16801), (1219, 15533), (2219, 8533), (2597, 7291)]