21932440

素因数分解:

$2^3\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1249}}^1$

素因数の和:1699

約数の個数: 32

約数和(自身を含む): 49500000

約数和(自身を除く): 27567560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 439, 878, 1249, 1756, 2195, 2498, 3512, 4390, 4996, 6245, 8780, 9992, 12490, 17560, 24980, 49960, 548311, 1096622, 2193244, 2741555, 4386488, 5483110, 10966220, 21932440]

約数ペア:

[(1, 21932440), (2, 10966220), (4, 5483110), (5, 4386488), (8, 2741555), (10, 2193244), (20, 1096622), (40, 548311), (439, 49960), (878, 24980), (1249, 17560), (1756, 12490), (2195, 9992), (2498, 8780), (3512, 6245), (4390, 4996)]