20866349

素因数分解:

$7^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{389}}^1$

素因数の和:572

約数の個数: 16

約数和(自身を含む): 24460800

約数和(自身を除く): 3594451

約数列:

[1, 7, 79, 97, 389, 553, 679, 2723, 7663, 30731, 37733, 53641, 215117, 264131, 2980907, 20866349]

約数ペア:

[(1, 20866349), (7, 2980907), (79, 264131), (97, 215117), (389, 53641), (553, 37733), (679, 30731), (2723, 7663)]