20613955

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{2237}}^1$

素因数の和:2358

約数の個数: 16

約数和(自身を含む): 26318880

約数和(自身を除く): 5704925

約数列:

[1, 5, 19, 95, 97, 485, 1843, 2237, 9215, 11185, 42503, 212515, 216989, 1084945, 4122791, 20613955]

約数ペア:

[(1, 20613955), (5, 4122791), (19, 1084945), (95, 216989), (97, 212515), (485, 42503), (1843, 11185), (2237, 9215)]