20157591

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{389}}^1\times {\mathrm{751}}^1$

素因数の和:1166

約数の個数: 16

約数和(自身を含む): 28154880

約数和(自身を除く): 7997289

約数列:

[1, 3, 23, 69, 389, 751, 1167, 2253, 8947, 17273, 26841, 51819, 292139, 876417, 6719197, 20157591]

約数ペア:

[(1, 20157591), (3, 6719197), (23, 876417), (69, 292139), (389, 51819), (751, 26841), (1167, 17273), (2253, 8947)]