19970505

素因数分解:

$3^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{2939}}^1$

素因数の和:3101

約数の個数: 24

約数和(自身を含む): 34856640

約数和(自身を除く): 14886135

約数列:

[1, 3, 5, 9, 15, 45, 151, 453, 755, 1359, 2265, 2939, 6795, 8817, 14695, 26451, 44085, 132255, 443789, 1331367, 2218945, 3994101, 6656835, 19970505]

約数ペア:

[(1, 19970505), (3, 6656835), (5, 3994101), (9, 2218945), (15, 1331367), (45, 443789), (151, 132255), (453, 44085), (755, 26451), (1359, 14695), (2265, 8817), (2939, 6795)]