21060075

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{14779}}^1$

素因数の和:14811

約数の個数: 24

約数和(自身を含む): 36654400

約数和(自身を除く): 15594325

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 285, 475, 1425, 14779, 44337, 73895, 221685, 280801, 369475, 842403, 1108425, 1404005, 4212015, 7020025, 21060075]

約数ペア:

[(1, 21060075), (3, 7020025), (5, 4212015), (15, 1404005), (19, 1108425), (25, 842403), (57, 369475), (75, 280801), (95, 221685), (285, 73895), (475, 44337), (1425, 14779)]