19838065

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1381}}^1$

素因数の和:1429

約数の個数: 24

約数和(自身を含む): 27313848

約数和(自身を除く): 7475783

約数列:

[1, 5, 13, 17, 65, 85, 169, 221, 845, 1105, 1381, 2873, 6905, 14365, 17953, 23477, 89765, 117385, 233389, 305201, 1166945, 1526005, 3967613, 19838065]

約数ペア:

[(1, 19838065), (5, 3967613), (13, 1526005), (17, 1166945), (65, 305201), (85, 233389), (169, 117385), (221, 89765), (845, 23477), (1105, 17953), (1381, 14365), (2873, 6905)]