20860965

素因数分解:

$3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4253}}^1$

素因数の和:4373

約数の個数: 24

約数和(自身を含む): 36499320

約数和(自身を除く): 15638355

約数列:

[1, 3, 5, 9, 15, 45, 109, 327, 545, 981, 1635, 4253, 4905, 12759, 21265, 38277, 63795, 191385, 463577, 1390731, 2317885, 4172193, 6953655, 20860965]

約数ペア:

[(1, 20860965), (3, 6953655), (5, 4172193), (9, 2317885), (15, 1390731), (45, 463577), (109, 191385), (327, 63795), (545, 38277), (981, 21265), (1635, 12759), (4253, 4905)]