21183795

素因数分解:

$3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{4241}}^1$

素因数の和:4292

約数の個数: 32

約数和(自身を含む): 38687040

約数和(自身を除く): 17503245

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 111, 135, 185, 333, 555, 999, 1665, 4241, 4995, 12723, 21205, 38169, 63615, 114507, 156917, 190845, 470751, 572535, 784585, 1412253, 2353755, 4236759, 7061265, 21183795]

約数ペア:

[(1, 21183795), (3, 7061265), (5, 4236759), (9, 2353755), (15, 1412253), (27, 784585), (37, 572535), (45, 470751), (111, 190845), (135, 156917), (185, 114507), (333, 63615), (555, 38169), (999, 21205), (1665, 12723), (4241, 4995)]