42990291

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{26987}}^1$

素因数の和:27055

約数の個数: 16

約数和(自身を含む): 64771200

約数和(自身を除く): 21780909

約数列:

[1, 3, 9, 27, 59, 177, 531, 1593, 26987, 80961, 242883, 728649, 1592233, 4776699, 14330097, 42990291]

約数ペア:

[(1, 42990291), (3, 14330097), (9, 4776699), (27, 1592233), (59, 728649), (177, 242883), (531, 80961), (1593, 26987)]