20216775

素因数分解:

$3^1\times 5^2\times {\mathrm{109}}^1\times {\mathrm{2473}}^1$

素因数の和:2595

約数の個数: 24

約数和(自身を含む): 33745360

約数和(自身を除く): 13528585

約数列:

[1, 3, 5, 15, 25, 75, 109, 327, 545, 1635, 2473, 2725, 7419, 8175, 12365, 37095, 61825, 185475, 269557, 808671, 1347785, 4043355, 6738925, 20216775]

約数ペア:

[(1, 20216775), (3, 6738925), (5, 4043355), (15, 1347785), (25, 808671), (75, 269557), (109, 185475), (327, 61825), (545, 37095), (1635, 12365), (2473, 8175), (2725, 7419)]