21713495

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{4391}}^1$

素因数の和:4462

約数の個数: 16

約数和(自身を含む): 27827712

約数和(自身を除く): 6114217

約数列:

[1, 5, 23, 43, 115, 215, 989, 4391, 4945, 21955, 100993, 188813, 504965, 944065, 4342699, 21713495]

約数ペア:

[(1, 21713495), (5, 4342699), (23, 944065), (43, 504965), (115, 188813), (215, 100993), (989, 21955), (4391, 4945)]