1871163

素因数分解:

$3^2\times 7^2\times {\mathrm{4243}}^1$

素因数の和:4263

約数の個数: 18

約数和(自身を含む): 3144804

約数和(自身を除く): 1273641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 4243, 12729, 29701, 38187, 89103, 207907, 267309, 623721, 1871163]

約数ペア:

[(1, 1871163), (3, 623721), (7, 267309), (9, 207907), (21, 89103), (49, 38187), (63, 29701), (147, 12729), (441, 4243)]