21838064

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{80287}}^1$

素因数の和:80312

約数の個数: 20

約数和(自身を含む): 44800704

約数和(自身を除く): 22962640

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 80287, 160574, 321148, 642296, 1284592, 1364879, 2729758, 5459516, 10919032, 21838064]

約数ペア:

[(1, 21838064), (2, 10919032), (4, 5459516), (8, 2729758), (16, 1364879), (17, 1284592), (34, 642296), (68, 321148), (136, 160574), (272, 80287)]