20539484

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{23663}}^1$

素因数の和:23705

約数の個数: 24

約数和(自身を含む): 42405888

約数和(自身を除く): 21866404

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 23663, 47326, 94652, 165641, 331282, 662564, 733553, 1467106, 2934212, 5134871, 10269742, 20539484]

約数ペア:

[(1, 20539484), (2, 10269742), (4, 5134871), (7, 2934212), (14, 1467106), (28, 733553), (31, 662564), (62, 331282), (124, 165641), (217, 94652), (434, 47326), (868, 23663)]