20658704

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{1097}}^1$

素因数の和:1223

約数の個数: 40

約数和(自身を含む): 44113248

約数和(自身を除く): 23454544

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 107, 176, 214, 428, 856, 1097, 1177, 1712, 2194, 2354, 4388, 4708, 8776, 9416, 12067, 17552, 18832, 24134, 48268, 96536, 117379, 193072, 234758, 469516, 939032, 1291169, 1878064, 2582338, 5164676, 10329352, 20658704]

約数ペア:

[(1, 20658704), (2, 10329352), (4, 5164676), (8, 2582338), (11, 1878064), (16, 1291169), (22, 939032), (44, 469516), (88, 234758), (107, 193072), (176, 117379), (214, 96536), (428, 48268), (856, 24134), (1097, 18832), (1177, 17552), (1712, 12067), (2194, 9416), (2354, 8776), (4388, 4708)]