212706507

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{2857}}^1$

素因数の和:2979

約数の個数: 32

約数和(自身を含む): 322656768

約数和(自身を除く): 109950261

約数列:

[1, 3, 13, 23, 39, 69, 83, 249, 299, 897, 1079, 1909, 2857, 3237, 5727, 8571, 24817, 37141, 65711, 74451, 111423, 197133, 237131, 711393, 854243, 2562729, 3082703, 5454013, 9248109, 16362039, 70902169, 212706507]

約数ペア:

[(1, 212706507), (3, 70902169), (13, 16362039), (23, 9248109), (39, 5454013), (69, 3082703), (83, 2562729), (249, 854243), (299, 711393), (897, 237131), (1079, 197133), (1909, 111423), (2857, 74451), (3237, 65711), (5727, 37141), (8571, 24817)]