21012136

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{154501}}^1$

素因数の和:154524

約数の個数: 16

約数和(自身を含む): 41715540

約数和(自身を除く): 20703404

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 154501, 309002, 618004, 1236008, 2626517, 5253034, 10506068, 21012136]

約数ペア:

[(1, 21012136), (2, 10506068), (4, 5253034), (8, 2626517), (17, 1236008), (34, 618004), (68, 309002), (136, 154501)]