19425015

素因数分解:

$3^4\times 5^1\times {\mathrm{47963}}^1$

素因数の和:47980

約数の個数: 20

約数和(自身を含む): 34821864

約数和(自身を除く): 15396849

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 47963, 143889, 239815, 431667, 719445, 1295001, 2158335, 3885003, 6475005, 19425015]

約数ペア:

[(1, 19425015), (3, 6475005), (5, 3885003), (9, 2158335), (15, 1295001), (27, 719445), (45, 431667), (81, 239815), (135, 143889), (405, 47963)]