21939945

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{887}}^1$

素因数の和:1009

約数の個数: 32

約数和(自身を含む): 37594368

約数和(自身を除く): 15654423

約数列:

[1, 3, 5, 15, 17, 51, 85, 97, 255, 291, 485, 887, 1455, 1649, 2661, 4435, 4947, 8245, 13305, 15079, 24735, 45237, 75395, 86039, 226185, 258117, 430195, 1290585, 1462663, 4387989, 7313315, 21939945]

約数ペア:

[(1, 21939945), (3, 7313315), (5, 4387989), (15, 1462663), (17, 1290585), (51, 430195), (85, 258117), (97, 226185), (255, 86039), (291, 75395), (485, 45237), (887, 24735), (1455, 15079), (1649, 13305), (2661, 8245), (4435, 4947)]