19850215

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1097}}^1$

素因数の和:1167

約数の個数: 32

約数和(自身を含む): 30357504

約数和(自身を除く): 10507289

約数列:

[1, 5, 7, 11, 35, 47, 55, 77, 235, 329, 385, 517, 1097, 1645, 2585, 3619, 5485, 7679, 12067, 18095, 38395, 51559, 60335, 84469, 257795, 360913, 422345, 567149, 1804565, 2835745, 3970043, 19850215]

約数ペア:

[(1, 19850215), (5, 3970043), (7, 2835745), (11, 1804565), (35, 567149), (47, 422345), (55, 360913), (77, 257795), (235, 84469), (329, 60335), (385, 51559), (517, 38395), (1097, 18095), (1645, 12067), (2585, 7679), (3619, 5485)]