19653615

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1117}}^1$

素因数の和:1168

約数の個数: 48

約数和(自身を含む): 37672128

約数和(自身を除く): 18018513

約数列:

[1, 3, 5, 9, 15, 17, 23, 45, 51, 69, 85, 115, 153, 207, 255, 345, 391, 765, 1035, 1117, 1173, 1955, 3351, 3519, 5585, 5865, 10053, 16755, 17595, 18989, 25691, 50265, 56967, 77073, 94945, 128455, 170901, 231219, 284835, 385365, 436747, 854505, 1156095, 1310241, 2183735, 3930723, 6551205, 19653615]

約数ペア:

[(1, 19653615), (3, 6551205), (5, 3930723), (9, 2183735), (15, 1310241), (17, 1156095), (23, 854505), (45, 436747), (51, 385365), (69, 284835), (85, 231219), (115, 170901), (153, 128455), (207, 94945), (255, 77073), (345, 56967), (391, 50265), (765, 25691), (1035, 18989), (1117, 17595), (1173, 16755), (1955, 10053), (3351, 5865), (3519, 5585)]