19998654

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{256393}}^1$

素因数の和:256411

約数の個数: 16

約数和(自身を含む): 43074192

約数和(自身を除く): 23075538

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 256393, 512786, 769179, 1538358, 3333109, 6666218, 9999327, 19998654]

約数ペア:

[(1, 19998654), (2, 9999327), (3, 6666218), (6, 3333109), (13, 1538358), (26, 769179), (39, 512786), (78, 256393)]