15999912

素因数分解:

$2^3\times 3^2\times {\mathrm{359}}^1\times {\mathrm{619}}^1$

素因数の和:990

約数の個数: 48

約数和(自身を含む): 43524000

約数和(自身を除く): 27524088

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 359, 619, 718, 1077, 1238, 1436, 1857, 2154, 2476, 2872, 3231, 3714, 4308, 4952, 5571, 6462, 7428, 8616, 11142, 12924, 14856, 22284, 25848, 44568, 222221, 444442, 666663, 888884, 1333326, 1777768, 1999989, 2666652, 3999978, 5333304, 7999956, 15999912]

約数ペア:

[(1, 15999912), (2, 7999956), (3, 5333304), (4, 3999978), (6, 2666652), (8, 1999989), (9, 1777768), (12, 1333326), (18, 888884), (24, 666663), (36, 444442), (72, 222221), (359, 44568), (619, 25848), (718, 22284), (1077, 14856), (1238, 12924), (1436, 11142), (1857, 8616), (2154, 7428), (2476, 6462), (2872, 5571), (3231, 4952), (3714, 4308)]