19694415

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{457}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 36207648

約数和(自身を除く): 16513233

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 169, 195, 221, 255, 457, 507, 663, 845, 1105, 1371, 2285, 2535, 2873, 3315, 5941, 6855, 7769, 8619, 14365, 17823, 23307, 29705, 38845, 43095, 77233, 89115, 100997, 116535, 231699, 302991, 386165, 504985, 1158495, 1312961, 1514955, 3938883, 6564805, 19694415]

約数ペア:

[(1, 19694415), (3, 6564805), (5, 3938883), (13, 1514955), (15, 1312961), (17, 1158495), (39, 504985), (51, 386165), (65, 302991), (85, 231699), (169, 116535), (195, 100997), (221, 89115), (255, 77233), (457, 43095), (507, 38845), (663, 29705), (845, 23307), (1105, 17823), (1371, 14365), (2285, 8619), (2535, 7769), (2873, 6855), (3315, 5941)]