19678095

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{887}}^1$

素因数の和:944

約数の個数: 48

約数和(自身を含む): 37402560

約数和(自身を除く): 17724465

約数列:

[1, 3, 5, 9, 15, 17, 29, 45, 51, 85, 87, 145, 153, 255, 261, 435, 493, 765, 887, 1305, 1479, 2465, 2661, 4435, 4437, 7395, 7983, 13305, 15079, 22185, 25723, 39915, 45237, 75395, 77169, 128615, 135711, 226185, 231507, 385845, 437291, 678555, 1157535, 1311873, 2186455, 3935619, 6559365, 19678095]

約数ペア:

[(1, 19678095), (3, 6559365), (5, 3935619), (9, 2186455), (15, 1311873), (17, 1157535), (29, 678555), (45, 437291), (51, 385845), (85, 231507), (87, 226185), (145, 135711), (153, 128615), (255, 77169), (261, 75395), (435, 45237), (493, 39915), (765, 25723), (887, 22185), (1305, 15079), (1479, 13305), (2465, 7983), (2661, 7395), (4435, 4437)]