19667385

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{547}}^1$

素因数の和:622

約数の個数: 48

約数和(自身を含む): 36930816

約数和(自身を除く): 17263431

約数列:

[1, 3, 5, 9, 15, 17, 45, 47, 51, 85, 141, 153, 235, 255, 423, 547, 705, 765, 799, 1641, 2115, 2397, 2735, 3995, 4923, 7191, 8205, 9299, 11985, 24615, 25709, 27897, 35955, 46495, 77127, 83691, 128545, 139485, 231381, 385635, 418455, 437053, 1156905, 1311159, 2185265, 3933477, 6555795, 19667385]

約数ペア:

[(1, 19667385), (3, 6555795), (5, 3933477), (9, 2185265), (15, 1311159), (17, 1156905), (45, 437053), (47, 418455), (51, 385635), (85, 231381), (141, 139485), (153, 128545), (235, 83691), (255, 77127), (423, 46495), (547, 35955), (705, 27897), (765, 25709), (799, 24615), (1641, 11985), (2115, 9299), (2397, 8205), (2735, 7191), (3995, 4923)]