20900558

素因数分解:

$2^1\times 7^2\times {\mathrm{419}}^1\times {\mathrm{509}}^1$

素因数の和:944

約数の個数: 24

約数和(自身を含む): 36628200

約数和(自身を除く): 15727642

約数列:

[1, 2, 7, 14, 49, 98, 419, 509, 838, 1018, 2933, 3563, 5866, 7126, 20531, 24941, 41062, 49882, 213271, 426542, 1492897, 2985794, 10450279, 20900558]

約数ペア:

[(1, 20900558), (2, 10450279), (7, 2985794), (14, 1492897), (49, 426542), (98, 213271), (419, 49882), (509, 41062), (838, 24941), (1018, 20531), (2933, 7126), (3563, 5866)]