21352850

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{25121}}^1$

素因数の和:25150

約数の個数: 24

約数和(自身を含む): 42054228

約数和(自身を除く): 20701378

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 170, 425, 850, 25121, 50242, 125605, 251210, 427057, 628025, 854114, 1256050, 2135285, 4270570, 10676425, 21352850]

約数ペア:

[(1, 21352850), (2, 10676425), (5, 4270570), (10, 2135285), (17, 1256050), (25, 854114), (34, 628025), (50, 427057), (85, 251210), (170, 125605), (425, 50242), (850, 25121)]