20456156

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{23567}}^1$

素因数の和:23609

約数の個数: 24

約数和(自身を含む): 42233856

約数和(自身を除く): 21777700

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 23567, 47134, 94268, 164969, 329938, 659876, 730577, 1461154, 2922308, 5114039, 10228078, 20456156]

約数ペア:

[(1, 20456156), (2, 10228078), (4, 5114039), (7, 2922308), (14, 1461154), (28, 730577), (31, 659876), (62, 329938), (124, 164969), (217, 94268), (434, 47134), (868, 23567)]