21259659

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{5051}}^1$

素因数の和:5138

約数の個数: 16

約数和(自身を含む): 30069504

約数和(自身を除く): 8809845

約数列:

[1, 3, 23, 61, 69, 183, 1403, 4209, 5051, 15153, 116173, 308111, 348519, 924333, 7086553, 21259659]

約数ペア:

[(1, 21259659), (3, 7086553), (23, 924333), (61, 348519), (69, 308111), (183, 116173), (1403, 15153), (4209, 5051)]