20871045

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{35677}}^1$

素因数の和:35701

約数の個数: 24

約数和(自身を含む): 38960376

約数和(自身を除く): 18089331

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 35677, 107031, 178385, 321093, 463801, 535155, 1391403, 1605465, 2319005, 4174209, 6957015, 20871045]

約数ペア:

[(1, 20871045), (3, 6957015), (5, 4174209), (9, 2319005), (13, 1605465), (15, 1391403), (39, 535155), (45, 463801), (65, 321093), (117, 178385), (195, 107031), (585, 35677)]