21778864

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2311}}^1$

素因数の和:2369

約数の個数: 40

約数和(自身を含む): 45870080

約数和(自身を除く): 24091216

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 62, 76, 124, 152, 248, 304, 496, 589, 1178, 2311, 2356, 4622, 4712, 9244, 9424, 18488, 36976, 43909, 71641, 87818, 143282, 175636, 286564, 351272, 573128, 702544, 1146256, 1361179, 2722358, 5444716, 10889432, 21778864]

約数ペア:

[(1, 21778864), (2, 10889432), (4, 5444716), (8, 2722358), (16, 1361179), (19, 1146256), (31, 702544), (38, 573128), (62, 351272), (76, 286564), (124, 175636), (152, 143282), (248, 87818), (304, 71641), (496, 43909), (589, 36976), (1178, 18488), (2311, 9424), (2356, 9244), (4622, 4712)]