209521345

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1\times {\mathrm{677}}^1$

素因数の和:1041

約数の個数: 32

約数和(自身を含む): 291724416

約数和(自身を除く): 82203071

約数列:

[1, 5, 11, 17, 55, 85, 187, 331, 677, 935, 1655, 3385, 3641, 5627, 7447, 11509, 18205, 28135, 37235, 57545, 61897, 126599, 224087, 309485, 632995, 1120435, 2464957, 3809479, 12324785, 19047395, 41904269, 209521345]

約数ペア:

[(1, 209521345), (5, 41904269), (11, 19047395), (17, 12324785), (55, 3809479), (85, 2464957), (187, 1120435), (331, 632995), (677, 309485), (935, 224087), (1655, 126599), (3385, 61897), (3641, 57545), (5627, 37235), (7447, 28135), (11509, 18205)]