17938965

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1$

素因数の和:234

約数の個数: 64

約数和(自身を含む): 34007040

約数和(自身を除く): 16068075

約数列:

[1, 3, 5, 11, 15, 23, 29, 33, 55, 69, 87, 115, 145, 163, 165, 253, 319, 345, 435, 489, 667, 759, 815, 957, 1265, 1595, 1793, 2001, 2445, 3335, 3749, 3795, 4727, 4785, 5379, 7337, 8965, 10005, 11247, 14181, 18745, 22011, 23635, 26895, 36685, 41239, 51997, 56235, 70905, 108721, 110055, 123717, 155991, 206195, 259985, 326163, 543605, 618585, 779955, 1195931, 1630815, 3587793, 5979655, 17938965]

約数ペア:

[(1, 17938965), (3, 5979655), (5, 3587793), (11, 1630815), (15, 1195931), (23, 779955), (29, 618585), (33, 543605), (55, 326163), (69, 259985), (87, 206195), (115, 155991), (145, 123717), (163, 110055), (165, 108721), (253, 70905), (319, 56235), (345, 51997), (435, 41239), (489, 36685), (667, 26895), (759, 23635), (815, 22011), (957, 18745), (1265, 14181), (1595, 11247), (1793, 10005), (2001, 8965), (2445, 7337), (3335, 5379), (3749, 4785), (3795, 4727)]