18739655

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{379}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 26265600

約数和(自身を除く): 7525945

約数列:

[1, 5, 11, 29, 31, 55, 145, 155, 319, 341, 379, 899, 1595, 1705, 1895, 4169, 4495, 9889, 10991, 11749, 20845, 49445, 54955, 58745, 120901, 129239, 340721, 604505, 646195, 1703605, 3747931, 18739655]

約数ペア:

[(1, 18739655), (5, 3747931), (11, 1703605), (29, 646195), (31, 604505), (55, 340721), (145, 129239), (155, 120901), (319, 58745), (341, 54955), (379, 49445), (899, 20845), (1595, 11749), (1705, 10991), (1895, 9889), (4169, 4495)]