1285751421

素因数分解:

$3^3\times {\mathrm{661}}^1\times {\mathrm{72043}}^1$

素因数の和:72713

約数の個数: 16

約数和(自身を含む): 1907725120

約数和(自身を除く): 621973699

約数列:

[1, 3, 9, 27, 661, 1983, 5949, 17847, 72043, 216129, 648387, 1945161, 47620423, 142861269, 428583807, 1285751421]

約数ペア:

[(1, 1285751421), (3, 428583807), (9, 142861269), (27, 47620423), (661, 1945161), (1983, 648387), (5949, 216129), (17847, 72043)]