20836690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1511}}^1$

素因数の和:1722

約数の個数: 32

約数和(自身を含む): 43110144

約数和(自身を除く): 22273454

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 197, 394, 985, 1379, 1511, 1970, 2758, 3022, 6895, 7555, 10577, 13790, 15110, 21154, 52885, 105770, 297667, 595334, 1488335, 2083669, 2976670, 4167338, 10418345, 20836690]

約数ペア:

[(1, 20836690), (2, 10418345), (5, 4167338), (7, 2976670), (10, 2083669), (14, 1488335), (35, 595334), (70, 297667), (197, 105770), (394, 52885), (985, 21154), (1379, 15110), (1511, 13790), (1970, 10577), (2758, 7555), (3022, 6895)]