20990488

素因数分解:

$2^3\times {\mathrm{163}}^1\times {\mathrm{16097}}^1$

素因数の和:16266

約数の個数: 16

約数和(自身を含む): 39601080

約数和(自身を除く): 18610592

約数列:

[1, 2, 4, 8, 163, 326, 652, 1304, 16097, 32194, 64388, 128776, 2623811, 5247622, 10495244, 20990488]

約数ペア:

[(1, 20990488), (2, 10495244), (4, 5247622), (8, 2623811), (163, 128776), (326, 64388), (652, 32194), (1304, 16097)]