19523565

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1$

素因数の和:259

約数の個数: 64

約数和(自身を含む): 37739520

約数和(自身を除く): 18215955

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 47, 51, 85, 135, 141, 153, 181, 235, 255, 423, 459, 543, 705, 765, 799, 905, 1269, 1629, 2115, 2295, 2397, 2715, 3077, 3995, 4887, 6345, 7191, 8145, 8507, 9231, 11985, 15385, 21573, 24435, 25521, 27693, 35955, 42535, 46155, 76563, 83079, 107865, 127605, 138465, 144619, 229689, 382815, 415395, 433857, 723095, 1148445, 1301571, 2169285, 3904713, 6507855, 19523565]

約数ペア:

[(1, 19523565), (3, 6507855), (5, 3904713), (9, 2169285), (15, 1301571), (17, 1148445), (27, 723095), (45, 433857), (47, 415395), (51, 382815), (85, 229689), (135, 144619), (141, 138465), (153, 127605), (181, 107865), (235, 83079), (255, 76563), (423, 46155), (459, 42535), (543, 35955), (705, 27693), (765, 25521), (799, 24435), (905, 21573), (1269, 15385), (1629, 11985), (2115, 9231), (2295, 8507), (2397, 8145), (2715, 7191), (3077, 6345), (3995, 4887)]