18848336

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{90617}}^1$

素因数の和:90638

約数の個数: 20

約数和(自身を含む): 39328212

約数和(自身を除く): 20479876

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 90617, 181234, 362468, 724936, 1178021, 1449872, 2356042, 4712084, 9424168, 18848336]

約数ペア:

[(1, 18848336), (2, 9424168), (4, 4712084), (8, 2356042), (13, 1449872), (16, 1178021), (26, 724936), (52, 362468), (104, 181234), (208, 90617)]