20417913

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{13267}}^1$

素因数の和:13298

約数の個数: 20

約数和(自身を含む): 32108560

約数和(自身を除く): 11690647

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 13267, 39801, 119403, 252073, 358209, 756219, 1074627, 2268657, 6805971, 20417913]

約数ペア:

[(1, 20417913), (3, 6805971), (9, 2268657), (19, 1074627), (27, 756219), (57, 358209), (81, 252073), (171, 119403), (513, 39801), (1539, 13267)]