21878928

素因数分解:

$2^4\times 3^2\times {\mathrm{151937}}^1$

素因数の和:151951

約数の個数: 30

約数和(自身を含む): 61231014

約数和(自身を除く): 39352086

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 151937, 303874, 455811, 607748, 911622, 1215496, 1367433, 1823244, 2430992, 2734866, 3646488, 5469732, 7292976, 10939464, 21878928]

約数ペア:

[(1, 21878928), (2, 10939464), (3, 7292976), (4, 5469732), (6, 3646488), (8, 2734866), (9, 2430992), (12, 1823244), (16, 1367433), (18, 1215496), (24, 911622), (36, 607748), (48, 455811), (72, 303874), (144, 151937)]