21252195

素因数分解:

$3^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{2447}}^1$

素因数の和:2651

約数の個数: 24

約数和(自身を含む): 37043136

約数和(自身を除く): 15790941

約数列:

[1, 3, 5, 9, 15, 45, 193, 579, 965, 1737, 2447, 2895, 7341, 8685, 12235, 22023, 36705, 110115, 472271, 1416813, 2361355, 4250439, 7084065, 21252195]

約数ペア:

[(1, 21252195), (3, 7084065), (5, 4250439), (9, 2361355), (15, 1416813), (45, 472271), (193, 110115), (579, 36705), (965, 22023), (1737, 12235), (2447, 8685), (2895, 7341)]