16841840

素因数分解:

$2^4\times 5^1\times {\mathrm{210523}}^1$

素因数の和:210536

約数の個数: 20

約数和(自身を含む): 39157464

約数和(自身を除く): 22315624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 210523, 421046, 842092, 1052615, 1684184, 2105230, 3368368, 4210460, 8420920, 16841840]

約数ペア:

[(1, 16841840), (2, 8420920), (4, 4210460), (5, 3368368), (8, 2105230), (10, 1684184), (16, 1052615), (20, 842092), (40, 421046), (80, 210523)]