21134128

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{77699}}^1$

素因数の和:77724

約数の個数: 20

約数和(自身を含む): 43356600

約数和(自身を除く): 22222472

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 77699, 155398, 310796, 621592, 1243184, 1320883, 2641766, 5283532, 10567064, 21134128]

約数ペア:

[(1, 21134128), (2, 10567064), (4, 5283532), (8, 2641766), (16, 1320883), (17, 1243184), (34, 621592), (68, 310796), (136, 155398), (272, 77699)]