18559918

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{1277}}^1$

素因数の和:1348

約数の個数: 24

約数和(自身を含む): 30871368

約数和(自身を除く): 12311450

約数列:

[1, 2, 13, 26, 43, 86, 169, 338, 559, 1118, 1277, 2554, 7267, 14534, 16601, 33202, 54911, 109822, 215813, 431626, 713843, 1427686, 9279959, 18559918]

約数ペア:

[(1, 18559918), (2, 9279959), (13, 1427686), (26, 713843), (43, 431626), (86, 215813), (169, 109822), (338, 54911), (559, 33202), (1118, 16601), (1277, 14534), (2554, 7267)]