20954615

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{2557}}^1$

素因数の和:2722

約数の個数: 16

約数和(自身を含む): 27626400

約数和(自身を除く): 6671785

約数列:

[1, 5, 11, 55, 149, 745, 1639, 2557, 8195, 12785, 28127, 140635, 380993, 1904965, 4190923, 20954615]

約数ペア:

[(1, 20954615), (5, 4190923), (11, 1904965), (55, 380993), (149, 140635), (745, 28127), (1639, 12785), (2557, 8195)]