40217289

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{5821}}^1$

素因数の和:5885

約数の個数: 24

約数和(自身を含む): 63715968

約数和(自身を除く): 23498679

約数列:

[1, 3, 7, 21, 47, 49, 141, 147, 329, 987, 2303, 5821, 6909, 17463, 40747, 122241, 273587, 285229, 820761, 855687, 1915109, 5745327, 13405763, 40217289]

約数ペア:

[(1, 40217289), (3, 13405763), (7, 5745327), (21, 1915109), (47, 855687), (49, 820761), (141, 285229), (147, 273587), (329, 122241), (987, 40747), (2303, 17463), (5821, 6909)]