20457651

素因数分解:

$3^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1\times {\mathrm{631}}^1$

素因数の和:842

約数の個数: 16

約数和(自身を含む): 27848448

約数和(自身を除く): 7390797

約数列:

[1, 3, 101, 107, 303, 321, 631, 1893, 10807, 32421, 63731, 67517, 191193, 202551, 6819217, 20457651]

約数ペア:

[(1, 20457651), (3, 6819217), (101, 202551), (107, 191193), (303, 67517), (321, 63731), (631, 32421), (1893, 10807)]