18653744

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1427}}^1$

素因数の和:1497

約数の個数: 40

約数和(自身を含む): 38955840

約数和(自身を除く): 20302096

約数列:

[1, 2, 4, 8, 16, 19, 38, 43, 76, 86, 152, 172, 304, 344, 688, 817, 1427, 1634, 2854, 3268, 5708, 6536, 11416, 13072, 22832, 27113, 54226, 61361, 108452, 122722, 216904, 245444, 433808, 490888, 981776, 1165859, 2331718, 4663436, 9326872, 18653744]

約数ペア:

[(1, 18653744), (2, 9326872), (4, 4663436), (8, 2331718), (16, 1165859), (19, 981776), (38, 490888), (43, 433808), (76, 245444), (86, 216904), (152, 122722), (172, 108452), (304, 61361), (344, 54226), (688, 27113), (817, 22832), (1427, 13072), (1634, 11416), (2854, 6536), (3268, 5708)]