21985628

素因数分解:

$2^2\times 7^1\times {\mathrm{191}}^1\times {\mathrm{4111}}^1$

素因数の和:4313

約数の個数: 24

約数和(自身を含む): 44212224

約数和(自身を除く): 22226596

約数列:

[1, 2, 4, 7, 14, 28, 191, 382, 764, 1337, 2674, 4111, 5348, 8222, 16444, 28777, 57554, 115108, 785201, 1570402, 3140804, 5496407, 10992814, 21985628]

約数ペア:

[(1, 21985628), (2, 10992814), (4, 5496407), (7, 3140804), (14, 1570402), (28, 785201), (191, 115108), (382, 57554), (764, 28777), (1337, 16444), (2674, 8222), (4111, 5348)]