20152531

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1$

素因数の和:283

約数の個数: 32

約数和(自身を含む): 26265600

約数和(自身を除く): 6113069

約数列:

[1, 7, 17, 23, 37, 119, 161, 199, 259, 391, 629, 851, 1393, 2737, 3383, 4403, 4577, 5957, 7363, 14467, 23681, 32039, 51541, 77809, 101269, 125171, 169349, 544663, 876197, 1185443, 2878933, 20152531]

約数ペア:

[(1, 20152531), (7, 2878933), (17, 1185443), (23, 876197), (37, 544663), (119, 169349), (161, 125171), (199, 101269), (259, 77809), (391, 51541), (629, 32039), (851, 23681), (1393, 14467), (2737, 7363), (3383, 5957), (4403, 4577)]