21307636

素因数分解:

$2^2\times 7^1\times {\mathrm{283}}^1\times {\mathrm{2689}}^1$

素因数の和:2983

約数の個数: 24

約数和(自身を含む): 42781760

約数和(自身を除く): 21474124

約数列:

[1, 2, 4, 7, 14, 28, 283, 566, 1132, 1981, 2689, 3962, 5378, 7924, 10756, 18823, 37646, 75292, 760987, 1521974, 3043948, 5326909, 10653818, 21307636]

約数ペア:

[(1, 21307636), (2, 10653818), (4, 5326909), (7, 3043948), (14, 1521974), (28, 760987), (283, 75292), (566, 37646), (1132, 18823), (1981, 10756), (2689, 7924), (3962, 5378)]