20197269

素因数分解:

$3^4\times {\mathrm{389}}^1\times {\mathrm{641}}^1$

素因数の和:1042

約数の個数: 20

約数和(自身を含む): 30295980

約数和(自身を除く): 10098711

約数列:

[1, 3, 9, 27, 81, 389, 641, 1167, 1923, 3501, 5769, 10503, 17307, 31509, 51921, 249349, 748047, 2244141, 6732423, 20197269]

約数ペア:

[(1, 20197269), (3, 6732423), (9, 2244141), (27, 748047), (81, 249349), (389, 51921), (641, 31509), (1167, 17307), (1923, 10503), (3501, 5769)]