201720309

素因数分解:

$3^1\times 7^2\times {\mathrm{673}}^1\times {\mathrm{2039}}^1$

素因数の和:2729

約数の個数: 24

約数和(自身を含む): 313490880

約数和(自身を除く): 111770571

約数列:

[1, 3, 7, 21, 49, 147, 673, 2019, 2039, 4711, 6117, 14133, 14273, 32977, 42819, 98931, 99911, 299733, 1372247, 4116741, 9605729, 28817187, 67240103, 201720309]

約数ペア:

[(1, 201720309), (3, 67240103), (7, 28817187), (21, 9605729), (49, 4116741), (147, 1372247), (673, 299733), (2019, 99911), (2039, 98931), (4711, 42819), (6117, 32977), (14133, 14273)]