18391696

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{599}}^1$

素因数の和:727

約数の個数: 40

約数和(自身を含む): 37944000

約数和(自身を除く): 19552304

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 101, 152, 202, 304, 404, 599, 808, 1198, 1616, 1919, 2396, 3838, 4792, 7676, 9584, 11381, 15352, 22762, 30704, 45524, 60499, 91048, 120998, 182096, 241996, 483992, 967984, 1149481, 2298962, 4597924, 9195848, 18391696]

約数ペア:

[(1, 18391696), (2, 9195848), (4, 4597924), (8, 2298962), (16, 1149481), (19, 967984), (38, 483992), (76, 241996), (101, 182096), (152, 120998), (202, 91048), (304, 60499), (404, 45524), (599, 30704), (808, 22762), (1198, 15352), (1616, 11381), (1919, 9584), (2396, 7676), (3838, 4792)]