21017576

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^2$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 43764300

約数和(自身を除く): 22746724

約数列:

[1, 2, 4, 8, 17, 29, 34, 58, 68, 73, 116, 136, 146, 232, 292, 493, 584, 986, 1241, 1972, 2117, 2482, 3944, 4234, 4964, 5329, 8468, 9928, 10658, 16936, 21316, 35989, 42632, 71978, 90593, 143956, 154541, 181186, 287912, 309082, 362372, 618164, 724744, 1236328, 2627197, 5254394, 10508788, 21017576]

約数ペア:

[(1, 21017576), (2, 10508788), (4, 5254394), (8, 2627197), (17, 1236328), (29, 724744), (34, 618164), (58, 362372), (68, 309082), (73, 287912), (116, 181186), (136, 154541), (146, 143956), (232, 90593), (292, 71978), (493, 42632), (584, 35989), (986, 21316), (1241, 16936), (1972, 10658), (2117, 9928), (2482, 8468), (3944, 5329), (4234, 4964)]