20521108

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{307}}^1\times {\mathrm{983}}^1$

素因数の和:1311

約数の個数: 24

約数和(自身を含む): 38187072

約数和(自身を除く): 17665964

約数列:

[1, 2, 4, 17, 34, 68, 307, 614, 983, 1228, 1966, 3932, 5219, 10438, 16711, 20876, 33422, 66844, 301781, 603562, 1207124, 5130277, 10260554, 20521108]

約数ペア:

[(1, 20521108), (2, 10260554), (4, 5130277), (17, 1207124), (34, 603562), (68, 301781), (307, 66844), (614, 33422), (983, 20876), (1228, 16711), (1966, 10438), (3932, 5219)]