64243263

素因数分解:

$3^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{4243}}^1$

素因数の和:4363

約数の個数: 24

約数和(自身を含む): 100633728

約数和(自身を除く): 36390465

約数列:

[1, 3, 7, 21, 49, 103, 147, 309, 721, 2163, 4243, 5047, 12729, 15141, 29701, 89103, 207907, 437029, 623721, 1311087, 3059203, 9177609, 21414421, 64243263]

約数ペア:

[(1, 64243263), (3, 21414421), (7, 9177609), (21, 3059203), (49, 1311087), (103, 623721), (147, 437029), (309, 207907), (721, 89103), (2163, 29701), (4243, 15141), (5047, 12729)]