20406388

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{173}}^1\times {\mathrm{797}}^1$

素因数の和:1011

約数の個数: 24

約数和(自身を含む): 36934632

約数和(自身を除く): 16528244

約数列:

[1, 2, 4, 37, 74, 148, 173, 346, 692, 797, 1594, 3188, 6401, 12802, 25604, 29489, 58978, 117956, 137881, 275762, 551524, 5101597, 10203194, 20406388]

約数ペア:

[(1, 20406388), (2, 10203194), (4, 5101597), (37, 551524), (74, 275762), (148, 137881), (173, 117956), (346, 58978), (692, 29489), (797, 25604), (1594, 12802), (3188, 6401)]