18438838

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{28901}}^1$

素因数の和:28943

約数の個数: 16

約数和(自身を含む): 31214160

約数和(自身を除く): 12775322

約数列:

[1, 2, 11, 22, 29, 58, 319, 638, 28901, 57802, 317911, 635822, 838129, 1676258, 9219419, 18438838]

約数ペア:

[(1, 18438838), (2, 9219419), (11, 1676258), (22, 838129), (29, 635822), (58, 317911), (319, 57802), (638, 28901)]