21675325

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4271}}^1$

素因数の和:4317

約数の個数: 24

約数和(自身を含む): 31783680

約数和(自身を除く): 10108355

約数列:

[1, 5, 7, 25, 29, 35, 145, 175, 203, 725, 1015, 4271, 5075, 21355, 29897, 106775, 123859, 149485, 619295, 747425, 867013, 3096475, 4335065, 21675325]

約数ペア:

[(1, 21675325), (5, 4335065), (7, 3096475), (25, 867013), (29, 747425), (35, 619295), (145, 149485), (175, 123859), (203, 106775), (725, 29897), (1015, 21355), (4271, 5075)]