19986470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{285521}}^1$

素因数の和:285535

約数の個数: 16

約数和(自身を含む): 41115168

約数和(自身を除く): 21128698

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 285521, 571042, 1427605, 1998647, 2855210, 3997294, 9993235, 19986470]

約数ペア:

[(1, 19986470), (2, 9993235), (5, 3997294), (7, 2855210), (10, 1998647), (14, 1427605), (35, 571042), (70, 285521)]