21396120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{178301}}^1$

素因数の和:178315

約数の個数: 32

約数和(自身を含む): 64188720

約数和(自身を除く): 42792600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 178301, 356602, 534903, 713204, 891505, 1069806, 1426408, 1783010, 2139612, 2674515, 3566020, 4279224, 5349030, 7132040, 10698060, 21396120]

約数ペア:

[(1, 21396120), (2, 10698060), (3, 7132040), (4, 5349030), (5, 4279224), (6, 3566020), (8, 2674515), (10, 2139612), (12, 1783010), (15, 1426408), (20, 1069806), (24, 891505), (30, 713204), (40, 534903), (60, 356602), (120, 178301)]