21301818

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{947}}^1$

素因数の和:1138

約数の個数: 32

約数和(自身を含む): 44775936

約数和(自身を除く): 23474118

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 163, 326, 489, 947, 978, 1894, 2841, 3749, 5682, 7498, 11247, 21781, 22494, 43562, 65343, 130686, 154361, 308722, 463083, 926166, 3550303, 7100606, 10650909, 21301818]

約数ペア:

[(1, 21301818), (2, 10650909), (3, 7100606), (6, 3550303), (23, 926166), (46, 463083), (69, 308722), (138, 154361), (163, 130686), (326, 65343), (489, 43562), (947, 22494), (978, 21781), (1894, 11247), (2841, 7498), (3749, 5682)]