21365145

素因数分解:

$3^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{2843}}^1$

素因数の和:3021

約数の個数: 24

約数和(自身を含む): 37267776

約数和(自身を除く): 15902631

約数列:

[1, 3, 5, 9, 15, 45, 167, 501, 835, 1503, 2505, 2843, 7515, 8529, 14215, 25587, 42645, 127935, 474781, 1424343, 2373905, 4273029, 7121715, 21365145]

約数ペア:

[(1, 21365145), (3, 7121715), (5, 4273029), (9, 2373905), (15, 1424343), (45, 474781), (167, 127935), (501, 42645), (835, 25587), (1503, 14215), (2505, 8529), (2843, 7515)]