20911956

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{3623}}^1$

素因数の和:3680

約数の個数: 48

約数和(自身を含む): 53983104

約数和(自身を除く): 33071148

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 37, 39, 52, 74, 78, 111, 148, 156, 222, 444, 481, 962, 1443, 1924, 2886, 3623, 5772, 7246, 10869, 14492, 21738, 43476, 47099, 94198, 134051, 141297, 188396, 268102, 282594, 402153, 536204, 565188, 804306, 1608612, 1742663, 3485326, 5227989, 6970652, 10455978, 20911956]

約数ペア:

[(1, 20911956), (2, 10455978), (3, 6970652), (4, 5227989), (6, 3485326), (12, 1742663), (13, 1608612), (26, 804306), (37, 565188), (39, 536204), (52, 402153), (74, 282594), (78, 268102), (111, 188396), (148, 141297), (156, 134051), (222, 94198), (444, 47099), (481, 43476), (962, 21738), (1443, 14492), (1924, 10869), (2886, 7246), (3623, 5772)]