20883015

素因数分解:

$3^4\times 5^1\times {\mathrm{51563}}^1$

素因数の和:51580

約数の個数: 20

約数和(自身を含む): 37435464

約数和(自身を除く): 16552449

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 51563, 154689, 257815, 464067, 773445, 1392201, 2320335, 4176603, 6961005, 20883015]

約数ペア:

[(1, 20883015), (3, 6961005), (5, 4176603), (9, 2320335), (15, 1392201), (27, 773445), (45, 464067), (81, 257815), (135, 154689), (405, 51563)]