19813695

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{227}}^1$

素因数の和:292

約数の個数: 48

約数和(自身を含む): 36312192

約数和(自身を除く): 16498497

約数列:

[1, 3, 5, 11, 15, 23, 33, 55, 69, 115, 165, 227, 253, 345, 529, 681, 759, 1135, 1265, 1587, 2497, 2645, 3405, 3795, 5221, 5819, 7491, 7935, 12485, 15663, 17457, 26105, 29095, 37455, 57431, 78315, 87285, 120083, 172293, 287155, 360249, 600415, 861465, 1320913, 1801245, 3962739, 6604565, 19813695]

約数ペア:

[(1, 19813695), (3, 6604565), (5, 3962739), (11, 1801245), (15, 1320913), (23, 861465), (33, 600415), (55, 360249), (69, 287155), (115, 172293), (165, 120083), (227, 87285), (253, 78315), (345, 57431), (529, 37455), (681, 29095), (759, 26105), (1135, 17457), (1265, 15663), (1587, 12485), (2497, 7935), (2645, 7491), (3405, 5819), (3795, 5221)]