18690669

素因数分解:

$3^4\times {\mathrm{59}}^1\times {\mathrm{3911}}^1$

素因数の和:3982

約数の個数: 20

約数和(自身を含む): 28401120

約数和(自身を除く): 9710451

約数列:

[1, 3, 9, 27, 59, 81, 177, 531, 1593, 3911, 4779, 11733, 35199, 105597, 230749, 316791, 692247, 2076741, 6230223, 18690669]

約数ペア:

[(1, 18690669), (3, 6230223), (9, 2076741), (27, 692247), (59, 316791), (81, 230749), (177, 105597), (531, 35199), (1593, 11733), (3911, 4779)]