21437768

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{4129}}^1$

素因数の和:4205

約数の個数: 32

約数和(自身を含む): 44604000

約数和(自身を除く): 23166232

約数列:

[1, 2, 4, 8, 11, 22, 44, 59, 88, 118, 236, 472, 649, 1298, 2596, 4129, 5192, 8258, 16516, 33032, 45419, 90838, 181676, 243611, 363352, 487222, 974444, 1948888, 2679721, 5359442, 10718884, 21437768]

約数ペア:

[(1, 21437768), (2, 10718884), (4, 5359442), (8, 2679721), (11, 1948888), (22, 974444), (44, 487222), (59, 363352), (88, 243611), (118, 181676), (236, 90838), (472, 45419), (649, 33032), (1298, 16516), (2596, 8258), (4129, 5192)]