21974788

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{3593}}^1$

素因数の和:3747

約数の個数: 24

約数和(自身を含む): 42265440

約数和(自身を除く): 20290652

約数列:

[1, 2, 4, 11, 22, 44, 139, 278, 556, 1529, 3058, 3593, 6116, 7186, 14372, 39523, 79046, 158092, 499427, 998854, 1997708, 5493697, 10987394, 21974788]

約数ペア:

[(1, 21974788), (2, 10987394), (4, 5493697), (11, 1997708), (22, 998854), (44, 499427), (139, 158092), (278, 79046), (556, 39523), (1529, 14372), (3058, 7186), (3593, 6116)]