21705704

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{87523}}^1$

素因数の和:87560

約数の個数: 16

約数和(自身を含む): 42011520

約数和(自身を除く): 20305816

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 87523, 175046, 350092, 700184, 2713213, 5426426, 10852852, 21705704]

約数ペア:

[(1, 21705704), (2, 10852852), (4, 5426426), (8, 2713213), (31, 700184), (62, 350092), (124, 175046), (248, 87523)]