21967561

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{9203}}^1$

素因数の和:9252

約数の個数: 16

約数和(自身を含む): 28274688

約数和(自身を除く): 6307127

約数列:

[1, 7, 11, 31, 77, 217, 341, 2387, 9203, 64421, 101233, 285293, 708631, 1997051, 3138223, 21967561]

約数ペア:

[(1, 21967561), (7, 3138223), (11, 1997051), (31, 708631), (77, 285293), (217, 101233), (341, 64421), (2387, 9203)]