201997905

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{421}}^1\times {\mathrm{1103}}^1$

素因数の和:1561

約数の個数: 32

約数和(自身を含む): 335439360

約数和(自身を除く): 133441455

約数列:

[1, 3, 5, 15, 29, 87, 145, 421, 435, 1103, 1263, 2105, 3309, 5515, 6315, 12209, 16545, 31987, 36627, 61045, 95961, 159935, 183135, 464363, 479805, 1393089, 2321815, 6965445, 13466527, 40399581, 67332635, 201997905]

約数ペア:

[(1, 201997905), (3, 67332635), (5, 40399581), (15, 13466527), (29, 6965445), (87, 2321815), (145, 1393089), (421, 479805), (435, 464363), (1103, 183135), (1263, 159935), (2105, 95961), (3309, 61045), (5515, 36627), (6315, 31987), (12209, 16545)]