20748993

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{9923}}^1$

素因数の和:9984

約数の個数: 16

約数和(自身を含む): 30010176

約数和(自身を除く): 9261183

約数列:

[1, 3, 17, 41, 51, 123, 697, 2091, 9923, 29769, 168691, 406843, 506073, 1220529, 6916331, 20748993]

約数ペア:

[(1, 20748993), (3, 6916331), (17, 1220529), (41, 506073), (51, 406843), (123, 168691), (697, 29769), (2091, 9923)]