21003514

素因数分解:

$2^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{11813}}^1$

素因数の和:11949

約数の個数: 16

約数和(自身を含む): 36292608

約数和(自身を除く): 15289094

約数列:

[1, 2, 7, 14, 127, 254, 889, 1778, 11813, 23626, 82691, 165382, 1500251, 3000502, 10501757, 21003514]

約数ペア:

[(1, 21003514), (2, 10501757), (7, 3000502), (14, 1500251), (127, 165382), (254, 82691), (889, 23626), (1778, 11813)]