19971968

素因数分解:

$2^7\times {\mathrm{337}}^1\times {\mathrm{463}}^1$

素因数の和:814

約数の個数: 32

約数和(自身を含む): 39992160

約数和(自身を除く): 20020192

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 337, 463, 674, 926, 1348, 1852, 2696, 3704, 5392, 7408, 10784, 14816, 21568, 29632, 43136, 59264, 156031, 312062, 624124, 1248248, 2496496, 4992992, 9985984, 19971968]

約数ペア:

[(1, 19971968), (2, 9985984), (4, 4992992), (8, 2496496), (16, 1248248), (32, 624124), (64, 312062), (128, 156031), (337, 59264), (463, 43136), (674, 29632), (926, 21568), (1348, 14816), (1852, 10784), (2696, 7408), (3704, 5392)]