20446764

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2473}}^1$

素因数の和:2546

約数の個数: 48

約数和(自身を含む): 52369632

約数和(自身を除く): 31922868

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 53, 78, 106, 156, 159, 212, 318, 636, 689, 1378, 2067, 2473, 2756, 4134, 4946, 7419, 8268, 9892, 14838, 29676, 32149, 64298, 96447, 128596, 131069, 192894, 262138, 385788, 393207, 524276, 786414, 1572828, 1703897, 3407794, 5111691, 6815588, 10223382, 20446764]

約数ペア:

[(1, 20446764), (2, 10223382), (3, 6815588), (4, 5111691), (6, 3407794), (12, 1703897), (13, 1572828), (26, 786414), (39, 524276), (52, 393207), (53, 385788), (78, 262138), (106, 192894), (156, 131069), (159, 128596), (212, 96447), (318, 64298), (636, 32149), (689, 29676), (1378, 14838), (2067, 9892), (2473, 8268), (2756, 7419), (4134, 4946)]