21996405

素因数分解:

$3^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{2927}}^1$

素因数の和:3105

約数の個数: 24

約数和(自身を含む): 38368512

約数和(自身を除く): 16372107

約数列:

[1, 3, 5, 9, 15, 45, 167, 501, 835, 1503, 2505, 2927, 7515, 8781, 14635, 26343, 43905, 131715, 488809, 1466427, 2444045, 4399281, 7332135, 21996405]

約数ペア:

[(1, 21996405), (3, 7332135), (5, 4399281), (9, 2444045), (15, 1466427), (45, 488809), (167, 131715), (501, 43905), (835, 26343), (1503, 14635), (2505, 8781), (2927, 7515)]