19783335

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{401}}^1$

素因数の和:456

約数の個数: 64

約数和(自身を含む): 38900736

約数和(自身を除く): 19117401

約数列:

[1, 3, 5, 11, 13, 15, 23, 33, 39, 55, 65, 69, 115, 143, 165, 195, 253, 299, 345, 401, 429, 715, 759, 897, 1203, 1265, 1495, 2005, 2145, 3289, 3795, 4411, 4485, 5213, 6015, 9223, 9867, 13233, 15639, 16445, 22055, 26065, 27669, 46115, 49335, 57343, 66165, 78195, 101453, 119899, 138345, 172029, 286715, 304359, 359697, 507265, 599495, 860145, 1318889, 1521795, 1798485, 3956667, 6594445, 19783335]

約数ペア:

[(1, 19783335), (3, 6594445), (5, 3956667), (11, 1798485), (13, 1521795), (15, 1318889), (23, 860145), (33, 599495), (39, 507265), (55, 359697), (65, 304359), (69, 286715), (115, 172029), (143, 138345), (165, 119899), (195, 101453), (253, 78195), (299, 66165), (345, 57343), (401, 49335), (429, 46115), (715, 27669), (759, 26065), (897, 22055), (1203, 16445), (1265, 15639), (1495, 13233), (2005, 9867), (2145, 9223), (3289, 6015), (3795, 5213), (4411, 4485)]