21870399

素因数分解:

$3^1\times {\mathrm{139}}^1\times {\mathrm{179}}^1\times {\mathrm{293}}^1$

素因数の和:614

約数の個数: 16

約数和(自身を含む): 29635200

約数和(自身を除く): 7764801

約数列:

[1, 3, 139, 179, 293, 417, 537, 879, 24881, 40727, 52447, 74643, 122181, 157341, 7290133, 21870399]

約数ペア:

[(1, 21870399), (3, 7290133), (139, 157341), (179, 122181), (293, 74643), (417, 52447), (537, 40727), (879, 24881)]