20823190

素因数分解:

$2^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{4091}}^1$

素因数の和:4607

約数の個数: 16

約数和(自身を含む): 37564560

約数和(自身を除く): 16741370

約数列:

[1, 2, 5, 10, 509, 1018, 2545, 4091, 5090, 8182, 20455, 40910, 2082319, 4164638, 10411595, 20823190]

約数ペア:

[(1, 20823190), (2, 10411595), (5, 4164638), (10, 2082319), (509, 40910), (1018, 20455), (2545, 8182), (4091, 5090)]