18780801

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{2179}}^1$

素因数の和:2225

約数の個数: 24

約数和(自身を含む): 28723680

約数和(自身を除く): 9942879

約数列:

[1, 3, 13, 17, 39, 51, 169, 221, 507, 663, 2179, 2873, 6537, 8619, 28327, 37043, 84981, 111129, 368251, 481559, 1104753, 1444677, 6260267, 18780801]

約数ペア:

[(1, 18780801), (3, 6260267), (13, 1444677), (17, 1104753), (39, 481559), (51, 368251), (169, 111129), (221, 84981), (507, 37043), (663, 28327), (2179, 8619), (2873, 6537)]