21432656

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6173}}^1$

素因数の和:6219

約数の個数: 40

約数和(自身を含む): 48996864

約数和(自身を除く): 27564208

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 6173, 12346, 24692, 43211, 49384, 86422, 98768, 172844, 191363, 345688, 382726, 691376, 765452, 1339541, 1530904, 2679082, 3061808, 5358164, 10716328, 21432656]

約数ペア:

[(1, 21432656), (2, 10716328), (4, 5358164), (7, 3061808), (8, 2679082), (14, 1530904), (16, 1339541), (28, 765452), (31, 691376), (56, 382726), (62, 345688), (112, 191363), (124, 172844), (217, 98768), (248, 86422), (434, 49384), (496, 43211), (868, 24692), (1736, 12346), (3472, 6173)]