31242981

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{641}}^1$

素因数の和:873

約数の個数: 32

約数和(自身を含む): 52263936

約数和(自身を除く): 21020955

約数列:

[1, 3, 7, 11, 21, 33, 77, 211, 231, 633, 641, 1477, 1923, 2321, 4431, 4487, 6963, 7051, 13461, 16247, 21153, 48741, 49357, 135251, 148071, 405753, 946757, 1487761, 2840271, 4463283, 10414327, 31242981]

約数ペア:

[(1, 31242981), (3, 10414327), (7, 4463283), (11, 2840271), (21, 1487761), (33, 946757), (77, 405753), (211, 148071), (231, 135251), (633, 49357), (641, 48741), (1477, 21153), (1923, 16247), (2321, 13461), (4431, 7051), (4487, 6963)]