21388114

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{983}}^1$

素因数の和:1062

約数の個数: 32

約数和(自身を含む): 37407744

約数和(自身を除く): 16019630

約数列:

[1, 2, 11, 22, 23, 43, 46, 86, 253, 473, 506, 946, 983, 989, 1966, 1978, 10813, 10879, 21626, 21758, 22609, 42269, 45218, 84538, 248699, 464959, 497398, 929918, 972187, 1944374, 10694057, 21388114]

約数ペア:

[(1, 21388114), (2, 10694057), (11, 1944374), (22, 972187), (23, 929918), (43, 497398), (46, 464959), (86, 248699), (253, 84538), (473, 45218), (506, 42269), (946, 22609), (983, 21758), (989, 21626), (1966, 10879), (1978, 10813)]