21320606

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1\times {\mathrm{1487}}^1$

素因数の和:1663

約数の個数: 16

約数和(自身を含む): 32783616

約数和(自身を除く): 11463010

約数列:

[1, 2, 67, 107, 134, 214, 1487, 2974, 7169, 14338, 99629, 159109, 199258, 318218, 10660303, 21320606]

約数ペア:

[(1, 21320606), (2, 10660303), (67, 318218), (107, 199258), (134, 159109), (214, 99629), (1487, 14338), (2974, 7169)]