21065464

素因数分解:

$2^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{5153}}^1$

素因数の和:5239

約数の個数: 32

約数和(自身を含む): 45767520

約数和(自身を除く): 24702056

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 73, 146, 292, 511, 584, 1022, 2044, 4088, 5153, 10306, 20612, 36071, 41224, 72142, 144284, 288568, 376169, 752338, 1504676, 2633183, 3009352, 5266366, 10532732, 21065464]

約数ペア:

[(1, 21065464), (2, 10532732), (4, 5266366), (7, 3009352), (8, 2633183), (14, 1504676), (28, 752338), (56, 376169), (73, 288568), (146, 144284), (292, 72142), (511, 41224), (584, 36071), (1022, 20612), (2044, 10306), (4088, 5153)]