20373213

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{7639}}^1$

素因数の和:7776

約数の個数: 16

約数和(自身を含む): 31293440

約数和(自身を除く): 10920227

約数列:

[1, 3, 7, 21, 127, 381, 889, 2667, 7639, 22917, 53473, 160419, 970153, 2910459, 6791071, 20373213]

約数ペア:

[(1, 20373213), (3, 6791071), (7, 2910459), (21, 970153), (127, 160419), (381, 53473), (889, 22917), (2667, 7639)]