20404065

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{123661}}^1$

素因数の和:123680

約数の個数: 16

約数和(自身を含む): 35614656

約数和(自身を除く): 15210591

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 123661, 370983, 618305, 1360271, 1854915, 4080813, 6801355, 20404065]

約数ペア:

[(1, 20404065), (3, 6801355), (5, 4080813), (11, 1854915), (15, 1360271), (33, 618305), (55, 370983), (165, 123661)]