21556542

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{337}}^1\times {\mathrm{1523}}^1$

素因数の和:1872

約数の個数: 32

約数和(自身を含む): 49450752

約数和(自身を除く): 27894210

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 337, 674, 1011, 1523, 2022, 2359, 3046, 4569, 4718, 7077, 9138, 10661, 14154, 21322, 31983, 63966, 513251, 1026502, 1539753, 3079506, 3592757, 7185514, 10778271, 21556542]

約数ペア:

[(1, 21556542), (2, 10778271), (3, 7185514), (6, 3592757), (7, 3079506), (14, 1539753), (21, 1026502), (42, 513251), (337, 63966), (674, 31983), (1011, 21322), (1523, 14154), (2022, 10661), (2359, 9138), (3046, 7077), (4569, 4718)]