20007911

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{1319}}^1$

素因数の和:1534

約数の個数: 16

約数和(自身を含む): 25090560

約数和(自身を除く): 5082649

約数列:

[1, 7, 11, 77, 197, 1319, 1379, 2167, 9233, 14509, 15169, 101563, 259843, 1818901, 2858273, 20007911]

約数ペア:

[(1, 20007911), (7, 2858273), (11, 1818901), (77, 259843), (197, 101563), (1319, 15169), (1379, 14509), (2167, 9233)]