11721975

素因数分解:

$3^1\times 5^2\times {\mathrm{73}}^1\times {\mathrm{2141}}^1$

素因数の和:2227

約数の個数: 24

約数和(自身を含む): 19654992

約数和(自身を除く): 7933017

約数列:

[1, 3, 5, 15, 25, 73, 75, 219, 365, 1095, 1825, 2141, 5475, 6423, 10705, 32115, 53525, 156293, 160575, 468879, 781465, 2344395, 3907325, 11721975]

約数ペア:

[(1, 11721975), (3, 3907325), (5, 2344395), (15, 781465), (25, 468879), (73, 160575), (75, 156293), (219, 53525), (365, 32115), (1095, 10705), (1825, 6423), (2141, 5475)]