19895668

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{2437}}^1$

素因数の和:2611

約数の個数: 24

約数和(自身を含む): 37749992

約数和(自身を除く): 17854324

約数列:

[1, 2, 4, 13, 26, 52, 157, 314, 628, 2041, 2437, 4082, 4874, 8164, 9748, 31681, 63362, 126724, 382609, 765218, 1530436, 4973917, 9947834, 19895668]

約数ペア:

[(1, 19895668), (2, 9947834), (4, 4973917), (13, 1530436), (26, 765218), (52, 382609), (157, 126724), (314, 63362), (628, 31681), (2041, 9748), (2437, 8164), (4082, 4874)]