16999215

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1$

素因数の和:391

約数の個数: 32

約数和(自身を含む): 28207872

約数和(自身を除く): 11208657

約数列:

[1, 3, 5, 15, 41, 123, 131, 205, 211, 393, 615, 633, 655, 1055, 1965, 3165, 5371, 8651, 16113, 25953, 26855, 27641, 43255, 80565, 82923, 129765, 138205, 414615, 1133281, 3399843, 5666405, 16999215]

約数ペア:

[(1, 16999215), (3, 5666405), (5, 3399843), (15, 1133281), (41, 414615), (123, 138205), (131, 129765), (205, 82923), (211, 80565), (393, 43255), (615, 27641), (633, 26855), (655, 25953), (1055, 16113), (1965, 8651), (3165, 5371)]