21747616

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1993}}^1$

素因数の和:2045

約数の個数: 48

約数和(自身を含む): 48238848

約数和(自身を除く): 26491232

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 88, 124, 176, 248, 341, 352, 496, 682, 992, 1364, 1993, 2728, 3986, 5456, 7972, 10912, 15944, 21923, 31888, 43846, 61783, 63776, 87692, 123566, 175384, 247132, 350768, 494264, 679613, 701536, 988528, 1359226, 1977056, 2718452, 5436904, 10873808, 21747616]

約数ペア:

[(1, 21747616), (2, 10873808), (4, 5436904), (8, 2718452), (11, 1977056), (16, 1359226), (22, 988528), (31, 701536), (32, 679613), (44, 494264), (62, 350768), (88, 247132), (124, 175384), (176, 123566), (248, 87692), (341, 63776), (352, 61783), (496, 43846), (682, 31888), (992, 21923), (1364, 15944), (1993, 10912), (2728, 7972), (3986, 5456)]