21781428

素因数分解:

$2^2\times 3^1\times {\mathrm{113}}^1\times {\mathrm{16063}}^1$

素因数の和:16183

約数の個数: 24

約数和(自身を含む): 51276288

約数和(自身を除く): 29494860

約数列:

[1, 2, 3, 4, 6, 12, 113, 226, 339, 452, 678, 1356, 16063, 32126, 48189, 64252, 96378, 192756, 1815119, 3630238, 5445357, 7260476, 10890714, 21781428]

約数ペア:

[(1, 21781428), (2, 10890714), (3, 7260476), (4, 5445357), (6, 3630238), (12, 1815119), (113, 192756), (226, 96378), (339, 64252), (452, 48189), (678, 32126), (1356, 16063)]