18751408

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5303}}^1$

素因数の和:5341

約数の個数: 40

約数和(自身を含む): 41434848

約数和(自身を除く): 22683440

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 3536, 5303, 10606, 21212, 42424, 68939, 84848, 90151, 137878, 180302, 275756, 360604, 551512, 721208, 1103024, 1171963, 1442416, 2343926, 4687852, 9375704, 18751408]

約数ペア:

[(1, 18751408), (2, 9375704), (4, 4687852), (8, 2343926), (13, 1442416), (16, 1171963), (17, 1103024), (26, 721208), (34, 551512), (52, 360604), (68, 275756), (104, 180302), (136, 137878), (208, 90151), (221, 84848), (272, 68939), (442, 42424), (884, 21212), (1768, 10606), (3536, 5303)]