21712390

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{607}}^1$

素因数の和:701

約数の個数: 48

約数和(自身を含む): 46161792

約数和(自身を除く): 24449402

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 73, 98, 146, 245, 365, 490, 511, 607, 730, 1022, 1214, 2555, 3035, 3577, 4249, 5110, 6070, 7154, 8498, 17885, 21245, 29743, 35770, 42490, 44311, 59486, 88622, 148715, 221555, 297430, 310177, 443110, 620354, 1550885, 2171239, 3101770, 4342478, 10856195, 21712390]

約数ペア:

[(1, 21712390), (2, 10856195), (5, 4342478), (7, 3101770), (10, 2171239), (14, 1550885), (35, 620354), (49, 443110), (70, 310177), (73, 297430), (98, 221555), (146, 148715), (245, 88622), (365, 59486), (490, 44311), (511, 42490), (607, 35770), (730, 29743), (1022, 21245), (1214, 17885), (2555, 8498), (3035, 7154), (3577, 6070), (4249, 5110)]