21667264

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1$

素因数の和:273

約数の個数: 56

約数和(自身を含む): 45321728

約数和(自身を除く): 23654464

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 67, 124, 134, 163, 248, 268, 326, 496, 536, 652, 992, 1072, 1304, 1984, 2077, 2144, 2608, 4154, 4288, 5053, 5216, 8308, 10106, 10432, 10921, 16616, 20212, 21842, 33232, 40424, 43684, 66464, 80848, 87368, 132928, 161696, 174736, 323392, 338551, 349472, 677102, 698944, 1354204, 2708408, 5416816, 10833632, 21667264]

約数ペア:

[(1, 21667264), (2, 10833632), (4, 5416816), (8, 2708408), (16, 1354204), (31, 698944), (32, 677102), (62, 349472), (64, 338551), (67, 323392), (124, 174736), (134, 161696), (163, 132928), (248, 87368), (268, 80848), (326, 66464), (496, 43684), (536, 40424), (652, 33232), (992, 21842), (1072, 20212), (1304, 16616), (1984, 10921), (2077, 10432), (2144, 10106), (2608, 8308), (4154, 5216), (4288, 5053)]