20398648

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{62191}}^1$

素因数の和:62238

約数の個数: 16

約数和(自身を含む): 39180960

約数和(自身を除く): 18782312

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 62191, 124382, 248764, 497528, 2549831, 5099662, 10199324, 20398648]

約数ペア:

[(1, 20398648), (2, 10199324), (4, 5099662), (8, 2549831), (41, 497528), (82, 248764), (164, 124382), (328, 62191)]