18285488

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{87911}}^1$

素因数の和:87932

約数の個数: 20

約数和(自身を含む): 38153808

約数和(自身を除く): 19868320

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 87911, 175822, 351644, 703288, 1142843, 1406576, 2285686, 4571372, 9142744, 18285488]

約数ペア:

[(1, 18285488), (2, 9142744), (4, 4571372), (8, 2285686), (13, 1406576), (16, 1142843), (26, 703288), (52, 351644), (104, 175822), (208, 87911)]