20397138

素因数分解:

$2^1\times 3^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{661}}^1$

素因数の和:842

約数の個数: 32

約数和(自身を含む): 42262080

約数和(自身を除く): 21864942

約数列:

[1, 2, 3, 6, 37, 74, 111, 139, 222, 278, 417, 661, 834, 1322, 1983, 3966, 5143, 10286, 15429, 24457, 30858, 48914, 73371, 91879, 146742, 183758, 275637, 551274, 3399523, 6799046, 10198569, 20397138]

約数ペア:

[(1, 20397138), (2, 10198569), (3, 6799046), (6, 3399523), (37, 551274), (74, 275637), (111, 183758), (139, 146742), (222, 91879), (278, 73371), (417, 48914), (661, 30858), (834, 24457), (1322, 15429), (1983, 10286), (3966, 5143)]