21970341

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{3881}}^1$

素因数の和:3941

約数の個数: 24

約数和(自身を含む): 34518744

約数和(自身を除く): 12548403

約数列:

[1, 3, 9, 17, 37, 51, 111, 153, 333, 629, 1887, 3881, 5661, 11643, 34929, 65977, 143597, 197931, 430791, 593793, 1292373, 2441149, 7323447, 21970341]

約数ペア:

[(1, 21970341), (3, 7323447), (9, 2441149), (17, 1292373), (37, 593793), (51, 430791), (111, 197931), (153, 143597), (333, 65977), (629, 34929), (1887, 11643), (3881, 5661)]