21745396

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{47}}^2\times {\mathrm{107}}^1$

素因数の和:228

約数の個数: 36

約数和(自身を含む): 40951008

約数和(自身を除く): 19205612

約数列:

[1, 2, 4, 23, 46, 47, 92, 94, 107, 188, 214, 428, 1081, 2162, 2209, 2461, 4324, 4418, 4922, 5029, 8836, 9844, 10058, 20116, 50807, 101614, 115667, 203228, 231334, 236363, 462668, 472726, 945452, 5436349, 10872698, 21745396]

約数ペア:

[(1, 21745396), (2, 10872698), (4, 5436349), (23, 945452), (46, 472726), (47, 462668), (92, 236363), (94, 231334), (107, 203228), (188, 115667), (214, 101614), (428, 50807), (1081, 20116), (2162, 10058), (2209, 9844), (2461, 8836), (4324, 5029), (4418, 4922)]