18211136

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1$

素因数の和:247

約数の個数: 56

約数和(自身を含む): 38136576

約数和(自身を除く): 19925440

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 67, 124, 134, 137, 248, 268, 274, 496, 536, 548, 992, 1072, 1096, 1984, 2077, 2144, 2192, 4154, 4247, 4288, 4384, 8308, 8494, 8768, 9179, 16616, 16988, 18358, 33232, 33976, 36716, 66464, 67952, 73432, 132928, 135904, 146864, 271808, 284549, 293728, 569098, 587456, 1138196, 2276392, 4552784, 9105568, 18211136]

約数ペア:

[(1, 18211136), (2, 9105568), (4, 4552784), (8, 2276392), (16, 1138196), (31, 587456), (32, 569098), (62, 293728), (64, 284549), (67, 271808), (124, 146864), (134, 135904), (137, 132928), (248, 73432), (268, 67952), (274, 66464), (496, 36716), (536, 33976), (548, 33232), (992, 18358), (1072, 16988), (1096, 16616), (1984, 9179), (2077, 8768), (2144, 8494), (2192, 8308), (4154, 4384), (4247, 4288)]