21346816

素因数分解:

$2^9\times {\mathrm{173}}^1\times {\mathrm{241}}^1$

素因数の和:432

約数の個数: 40

約数和(自身を含む): 43076484

約数和(自身を除く): 21729668

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 173, 241, 256, 346, 482, 512, 692, 964, 1384, 1928, 2768, 3856, 5536, 7712, 11072, 15424, 22144, 30848, 41693, 44288, 61696, 83386, 88576, 123392, 166772, 333544, 667088, 1334176, 2668352, 5336704, 10673408, 21346816]

約数ペア:

[(1, 21346816), (2, 10673408), (4, 5336704), (8, 2668352), (16, 1334176), (32, 667088), (64, 333544), (128, 166772), (173, 123392), (241, 88576), (256, 83386), (346, 61696), (482, 44288), (512, 41693), (692, 30848), (964, 22144), (1384, 15424), (1928, 11072), (2768, 7712), (3856, 5536)]