18611216

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{89477}}^1$

素因数の和:89498

約数の個数: 20

約数和(自身を含む): 38833452

約数和(自身を除く): 20222236

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 89477, 178954, 357908, 715816, 1163201, 1431632, 2326402, 4652804, 9305608, 18611216]

約数ペア:

[(1, 18611216), (2, 9305608), (4, 4652804), (8, 2326402), (13, 1431632), (16, 1163201), (26, 715816), (52, 357908), (104, 178954), (208, 89477)]