21371008

素因数分解:

$2^7\times {\mathrm{199}}^1\times {\mathrm{839}}^1$

素因数の和:1052

約数の個数: 32

約数和(自身を含む): 42840000

約数和(自身を除く): 21468992

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 199, 398, 796, 839, 1592, 1678, 3184, 3356, 6368, 6712, 12736, 13424, 25472, 26848, 53696, 107392, 166961, 333922, 667844, 1335688, 2671376, 5342752, 10685504, 21371008]

約数ペア:

[(1, 21371008), (2, 10685504), (4, 5342752), (8, 2671376), (16, 1335688), (32, 667844), (64, 333922), (128, 166961), (199, 107392), (398, 53696), (796, 26848), (839, 25472), (1592, 13424), (1678, 12736), (3184, 6712), (3356, 6368)]