25891216

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{124477}}^1$

素因数の和:124498

約数の個数: 20

約数和(自身を含む): 54023452

約数和(自身を除く): 28132236

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 124477, 248954, 497908, 995816, 1618201, 1991632, 3236402, 6472804, 12945608, 25891216]

約数ペア:

[(1, 25891216), (2, 12945608), (4, 6472804), (8, 3236402), (13, 1991632), (16, 1618201), (26, 995816), (52, 497908), (104, 248954), (208, 124477)]