19927485

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{457}}^1$

素因数の和:507

約数の個数: 64

約数和(自身を含む): 39571200

約数和(自身を除く): 19643715

約数列:

[1, 3, 5, 9, 15, 17, 19, 27, 45, 51, 57, 85, 95, 135, 153, 171, 255, 285, 323, 457, 459, 513, 765, 855, 969, 1371, 1615, 2285, 2295, 2565, 2907, 4113, 4845, 6855, 7769, 8683, 8721, 12339, 14535, 20565, 23307, 26049, 38845, 43415, 43605, 61695, 69921, 78147, 116535, 130245, 147611, 209763, 234441, 349605, 390735, 442833, 738055, 1048815, 1172205, 1328499, 2214165, 3985497, 6642495, 19927485]

約数ペア:

[(1, 19927485), (3, 6642495), (5, 3985497), (9, 2214165), (15, 1328499), (17, 1172205), (19, 1048815), (27, 738055), (45, 442833), (51, 390735), (57, 349605), (85, 234441), (95, 209763), (135, 147611), (153, 130245), (171, 116535), (255, 78147), (285, 69921), (323, 61695), (457, 43605), (459, 43415), (513, 38845), (765, 26049), (855, 23307), (969, 20565), (1371, 14535), (1615, 12339), (2285, 8721), (2295, 8683), (2565, 7769), (2907, 6855), (4113, 4845)]