18396478

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1\times {\mathrm{571}}^1$

素因数の和:843

約数の個数: 16

約数和(自身を含む): 28108080

約数和(自身を除く): 9711602

約数列:

[1, 2, 89, 178, 181, 362, 571, 1142, 16109, 32218, 50819, 101638, 103351, 206702, 9198239, 18396478]

約数ペア:

[(1, 18396478), (2, 9198239), (89, 206702), (178, 103351), (181, 101638), (362, 50819), (571, 32218), (1142, 16109)]