21392770

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{305611}}^1$

素因数の和:305625

約数の個数: 16

約数和(自身を含む): 44008128

約数和(自身を除く): 22615358

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 305611, 611222, 1528055, 2139277, 3056110, 4278554, 10696385, 21392770]

約数ペア:

[(1, 21392770), (2, 10696385), (5, 4278554), (7, 3056110), (10, 2139277), (14, 1528055), (35, 611222), (70, 305611)]