20687733

素因数分解:

$3^2\times {\mathrm{11}}^4\times {\mathrm{157}}^1$

素因数の和:207

約数の個数: 30

約数和(自身を含む): 33079670

約数和(自身を除く): 12391937

約数列:

[1, 3, 9, 11, 33, 99, 121, 157, 363, 471, 1089, 1331, 1413, 1727, 3993, 5181, 11979, 14641, 15543, 18997, 43923, 56991, 131769, 170973, 208967, 626901, 1880703, 2298637, 6895911, 20687733]

約数ペア:

[(1, 20687733), (3, 6895911), (9, 2298637), (11, 1880703), (33, 626901), (99, 208967), (121, 170973), (157, 131769), (363, 56991), (471, 43923), (1089, 18997), (1331, 15543), (1413, 14641), (1727, 11979), (3993, 5181)]