21792440

素因数分解:

$2^3\times 5^1\times {\mathrm{617}}^1\times {\mathrm{883}}^1$

素因数の和:1511

約数の個数: 32

約数和(自身を含む): 49168080

約数和(自身を除く): 27375640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 617, 883, 1234, 1766, 2468, 3085, 3532, 4415, 4936, 6170, 7064, 8830, 12340, 17660, 24680, 35320, 544811, 1089622, 2179244, 2724055, 4358488, 5448110, 10896220, 21792440]

約数ペア:

[(1, 21792440), (2, 10896220), (4, 5448110), (5, 4358488), (8, 2724055), (10, 2179244), (20, 1089622), (40, 544811), (617, 35320), (883, 24680), (1234, 17660), (1766, 12340), (2468, 8830), (3085, 7064), (3532, 6170), (4415, 4936)]