20870655

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{8233}}^1$

素因数の和:8267

約数の個数: 24

約数和(自身を含む): 36163728

約数和(自身を除く): 15293073

約数列:

[1, 3, 5, 13, 15, 39, 65, 169, 195, 507, 845, 2535, 8233, 24699, 41165, 107029, 123495, 321087, 535145, 1391377, 1605435, 4174131, 6956885, 20870655]

約数ペア:

[(1, 20870655), (3, 6956885), (5, 4174131), (13, 1605435), (15, 1391377), (39, 535145), (65, 321087), (169, 123495), (195, 107029), (507, 41165), (845, 24699), (2535, 8233)]