217964331

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{620981}}^1$

素因数の和:621003

約数の個数: 16

約数和(自身を含む): 347749920

約数和(自身を除く): 129785589

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 620981, 1862943, 5588829, 8072753, 16766487, 24218259, 72654777, 217964331]

約数ペア:

[(1, 217964331), (3, 72654777), (9, 24218259), (13, 16766487), (27, 8072753), (39, 5588829), (117, 1862943), (351, 620981)]