40407903

素因数分解:

$3^4\times {\mathrm{659}}^1\times {\mathrm{757}}^1$

素因数の和:1428

約数の個数: 20

約数和(自身を含む): 60533880

約数和(自身を除く): 20125977

約数列:

[1, 3, 9, 27, 81, 659, 757, 1977, 2271, 5931, 6813, 17793, 20439, 53379, 61317, 498863, 1496589, 4489767, 13469301, 40407903]

約数ペア:

[(1, 40407903), (3, 13469301), (9, 4489767), (27, 1496589), (81, 498863), (659, 61317), (757, 53379), (1977, 20439), (2271, 17793), (5931, 6813)]