20671305

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{269}}^1$

素因数の和:433

約数の個数: 32

約数和(自身を含む): 34214400

約数和(自身を除く): 13543095

約数列:

[1, 3, 5, 15, 47, 109, 141, 235, 269, 327, 545, 705, 807, 1345, 1635, 4035, 5123, 12643, 15369, 25615, 29321, 37929, 63215, 76845, 87963, 146605, 189645, 439815, 1378087, 4134261, 6890435, 20671305]

約数ペア:

[(1, 20671305), (3, 6890435), (5, 4134261), (15, 1378087), (47, 439815), (109, 189645), (141, 146605), (235, 87963), (269, 76845), (327, 63215), (545, 37929), (705, 29321), (807, 25615), (1345, 15369), (1635, 12643), (4035, 5123)]