21288350

素因数分解:

$2^1\times 5^2\times {\mathrm{541}}^1\times {\mathrm{787}}^1$

素因数の和:1340

約数の個数: 24

約数和(自身を含む): 39719928

約数和(自身を除く): 18431578

約数列:

[1, 2, 5, 10, 25, 50, 541, 787, 1082, 1574, 2705, 3935, 5410, 7870, 13525, 19675, 27050, 39350, 425767, 851534, 2128835, 4257670, 10644175, 21288350]

約数ペア:

[(1, 21288350), (2, 10644175), (5, 4257670), (10, 2128835), (25, 851534), (50, 425767), (541, 39350), (787, 27050), (1082, 19675), (1574, 13525), (2705, 7870), (3935, 5410)]