21019920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{87583}}^1$

素因数の和:87599

約数の個数: 40

約数和(自身を含む): 65162496

約数和(自身を除く): 44142576

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 87583, 175166, 262749, 350332, 437915, 525498, 700664, 875830, 1050996, 1313745, 1401328, 1751660, 2101992, 2627490, 3503320, 4203984, 5254980, 7006640, 10509960, 21019920]

約数ペア:

[(1, 21019920), (2, 10509960), (3, 7006640), (4, 5254980), (5, 4203984), (6, 3503320), (8, 2627490), (10, 2101992), (12, 1751660), (15, 1401328), (16, 1313745), (20, 1050996), (24, 875830), (30, 700664), (40, 525498), (48, 437915), (60, 350332), (80, 262749), (120, 175166), (240, 87583)]