20742968

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{83641}}^1$

素因数の和:83678

約数の個数: 16

約数和(自身を含む): 40148160

約数和(自身を除く): 19405192

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 83641, 167282, 334564, 669128, 2592871, 5185742, 10371484, 20742968]

約数ペア:

[(1, 20742968), (2, 10371484), (4, 5185742), (8, 2592871), (31, 669128), (62, 334564), (124, 167282), (248, 83641)]