20864445

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{28387}}^1$

素因数の和:28409

約数の個数: 24

約数和(自身を含む): 38834784

約数和(自身を除く): 17970339

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 28387, 85161, 141935, 198709, 425805, 596127, 993545, 1390963, 2980635, 4172889, 6954815, 20864445]

約数ペア:

[(1, 20864445), (3, 6954815), (5, 4172889), (7, 2980635), (15, 1390963), (21, 993545), (35, 596127), (49, 425805), (105, 198709), (147, 141935), (245, 85161), (735, 28387)]