21509514

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{91921}}^1$

素因数の和:91942

約数の個数: 24

約数和(自身を含む): 50189412

約数和(自身を除く): 28679898

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 91921, 183842, 275763, 551526, 827289, 1194973, 1654578, 2389946, 3584919, 7169838, 10754757, 21509514]

約数ペア:

[(1, 21509514), (2, 10754757), (3, 7169838), (6, 3584919), (9, 2389946), (13, 1654578), (18, 1194973), (26, 827289), (39, 551526), (78, 275763), (117, 183842), (234, 91921)]