21292288

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{2683}}^1$

素因数の和:2730

約数の個数: 36

約数和(自身を含む): 43888768

約数和(自身を除く): 22596480

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 992, 1984, 2683, 3968, 5366, 7936, 10732, 21464, 42928, 83173, 85856, 166346, 171712, 332692, 343424, 665384, 686848, 1330768, 2661536, 5323072, 10646144, 21292288]

約数ペア:

[(1, 21292288), (2, 10646144), (4, 5323072), (8, 2661536), (16, 1330768), (31, 686848), (32, 665384), (62, 343424), (64, 332692), (124, 171712), (128, 166346), (248, 85856), (256, 83173), (496, 42928), (992, 21464), (1984, 10732), (2683, 7936), (3968, 5366)]