19318205

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{461}}^1$

素因数の和:529

約数の個数: 24

約数和(自身を含む): 25530120

約数和(自身を除く): 6211915

約数列:

[1, 5, 17, 29, 85, 145, 289, 461, 493, 1445, 2305, 2465, 7837, 8381, 13369, 39185, 41905, 66845, 133229, 227273, 666145, 1136365, 3863641, 19318205]

約数ペア:

[(1, 19318205), (5, 3863641), (17, 1136365), (29, 666145), (85, 227273), (145, 133229), (289, 66845), (461, 41905), (493, 39185), (1445, 13369), (2305, 8381), (2465, 7837)]