21994039

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{457}}^1$

素因数の和:642

約数の個数: 16

約数和(自身を含む): 24732000

約数和(自身を除く): 2737961

約数列:

[1, 17, 19, 149, 323, 457, 2533, 2831, 7769, 8683, 48127, 68093, 147611, 1157581, 1293767, 21994039]

約数ペア:

[(1, 21994039), (17, 1293767), (19, 1157581), (149, 147611), (323, 68093), (457, 48127), (2533, 8683), (2831, 7769)]