20199993

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{5417}}^1$

素因数の和:5544

約数の個数: 16

約数和(自身を含む): 29647296

約数和(自身を除く): 9447303

約数列:

[1, 3, 11, 33, 113, 339, 1243, 3729, 5417, 16251, 59587, 178761, 612121, 1836363, 6733331, 20199993]

約数ペア:

[(1, 20199993), (3, 6733331), (11, 1836363), (33, 612121), (113, 178761), (339, 59587), (1243, 16251), (3729, 5417)]