21826945

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20117}}^1$

素因数の和:20160

約数の個数: 16

約数和(自身を含む): 30901248

約数和(自身を除く): 9074303

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 20117, 100585, 140819, 623627, 704095, 3118135, 4365389, 21826945]

約数ペア:

[(1, 21826945), (5, 4365389), (7, 3118135), (31, 704095), (35, 623627), (155, 140819), (217, 100585), (1085, 20117)]