20979018

素因数分解:

$2^1\times 3^2\times {\mathrm{173}}^1\times {\mathrm{6737}}^1$

素因数の和:6918

約数の個数: 24

約数和(自身を含む): 45724068

約数和(自身を除く): 24745050

約数列:

[1, 2, 3, 6, 9, 18, 173, 346, 519, 1038, 1557, 3114, 6737, 13474, 20211, 40422, 60633, 121266, 1165501, 2331002, 3496503, 6993006, 10489509, 20979018]

約数ペア:

[(1, 20979018), (2, 10489509), (3, 6993006), (6, 3496503), (9, 2331002), (18, 1165501), (173, 121266), (346, 60633), (519, 40422), (1038, 20211), (1557, 13474), (3114, 6737)]