20419804

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{1399}}^1$

素因数の和:1533

約数の個数: 24

約数和(自身を含む): 37044000

約数和(自身を除く): 16624196

約数列:

[1, 2, 4, 41, 82, 89, 164, 178, 356, 1399, 2798, 3649, 5596, 7298, 14596, 57359, 114718, 124511, 229436, 249022, 498044, 5104951, 10209902, 20419804]

約数ペア:

[(1, 20419804), (2, 10209902), (4, 5104951), (41, 498044), (82, 249022), (89, 229436), (164, 124511), (178, 114718), (356, 57359), (1399, 14596), (2798, 7298), (3649, 5596)]