19882749

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1\times {\mathrm{487}}^1$

素因数の和:960

約数の個数: 16

約数和(自身を含む): 27484160

約数和(自身を除く): 7601411

約数列:

[1, 3, 31, 93, 439, 487, 1317, 1461, 13609, 15097, 40827, 45291, 213793, 641379, 6627583, 19882749]

約数ペア:

[(1, 19882749), (3, 6627583), (31, 641379), (93, 213793), (439, 45291), (487, 40827), (1317, 15097), (1461, 13609)]