21167019903

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{661}}^1\times {\mathrm{288493}}^1$

素因数の和:289194

約数の個数: 16

約数和(自身を含む): 29029420256

約数和(自身を除く): 7862400353

約数列:

[1, 3, 37, 111, 661, 1983, 24457, 73371, 288493, 865479, 10674241, 32022723, 190693873, 572081619, 7055673301, 21167019903]

約数ペア:

[(1, 21167019903), (3, 7055673301), (37, 572081619), (111, 190693873), (661, 32022723), (1983, 10674241), (24457, 865479), (73371, 288493)]