21012254

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1\times {\mathrm{1697}}^1$

素因数の和:1891

約数の個数: 16

約数和(自身を含む): 32520096

約数和(自身を除く): 11507842

約数列:

[1, 2, 41, 82, 151, 302, 1697, 3394, 6191, 12382, 69577, 139154, 256247, 512494, 10506127, 21012254]

約数ペア:

[(1, 21012254), (2, 10506127), (41, 512494), (82, 256247), (151, 139154), (302, 69577), (1697, 12382), (3394, 6191)]