398846138

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{233}}^1\times {\mathrm{421}}^1$

素因数の和:782

約数の個数: 32

約数和(自身を含む): 639887040

約数和(自身を除く): 241040902

約数列:

[1, 2, 19, 38, 107, 214, 233, 421, 466, 842, 2033, 4066, 4427, 7999, 8854, 15998, 24931, 45047, 49862, 90094, 98093, 196186, 473689, 855893, 947378, 1711786, 1863767, 3727534, 10495951, 20991902, 199423069, 398846138]

約数ペア:

[(1, 398846138), (2, 199423069), (19, 20991902), (38, 10495951), (107, 3727534), (214, 1863767), (233, 1711786), (421, 947378), (466, 855893), (842, 473689), (2033, 196186), (4066, 98093), (4427, 90094), (7999, 49862), (8854, 45047), (15998, 24931)]