18865304

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{317}}^1$

素因数の和:539

約数の個数: 32

約数和(自身を含む): 36519120

約数和(自身を除く): 17653816

約数列:

[1, 2, 4, 8, 43, 86, 172, 173, 317, 344, 346, 634, 692, 1268, 1384, 2536, 7439, 13631, 14878, 27262, 29756, 54524, 54841, 59512, 109048, 109682, 219364, 438728, 2358163, 4716326, 9432652, 18865304]

約数ペア:

[(1, 18865304), (2, 9432652), (4, 4716326), (8, 2358163), (43, 438728), (86, 219364), (172, 109682), (173, 109048), (317, 59512), (344, 54841), (346, 54524), (634, 29756), (692, 27262), (1268, 14878), (1384, 13631), (2536, 7439)]