218492065

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{172721}}^1$

素因数の和:172760

約数の個数: 16

約数和(自身を含む): 298463616

約数和(自身を除く): 79971551

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 172721, 863605, 1899931, 3972583, 9499655, 19862915, 43698413, 218492065]

約数ペア:

[(1, 218492065), (5, 43698413), (11, 19862915), (23, 9499655), (55, 3972583), (115, 1899931), (253, 863605), (1265, 172721)]