21871112

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{160817}}^1$

素因数の和:160840

約数の個数: 16

約数和(自身を含む): 43420860

約数和(自身を除く): 21549748

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 160817, 321634, 643268, 1286536, 2733889, 5467778, 10935556, 21871112]

約数ペア:

[(1, 21871112), (2, 10935556), (4, 5467778), (8, 2733889), (17, 1286536), (34, 643268), (68, 321634), (136, 160817)]