21028448

素因数分解:

$2^5\times 7^2\times {\mathrm{13411}}^1$

素因数の和:13435

約数の個数: 36

約数和(自身を含む): 48162492

約数和(自身を除く): 27134044

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 392, 784, 1568, 13411, 26822, 53644, 93877, 107288, 187754, 214576, 375508, 429152, 657139, 751016, 1314278, 1502032, 2628556, 3004064, 5257112, 10514224, 21028448]

約数ペア:

[(1, 21028448), (2, 10514224), (4, 5257112), (7, 3004064), (8, 2628556), (14, 1502032), (16, 1314278), (28, 751016), (32, 657139), (49, 429152), (56, 375508), (98, 214576), (112, 187754), (196, 107288), (224, 93877), (392, 53644), (784, 26822), (1568, 13411)]