20854184

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{839}}^1$

素因数の和:1097

約数の個数: 32

約数和(自身を含む): 42336000

約数和(自身を除く): 21481816

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 239, 478, 839, 956, 1678, 1912, 3107, 3356, 6214, 6712, 10907, 12428, 21814, 24856, 43628, 87256, 200521, 401042, 802084, 1604168, 2606773, 5213546, 10427092, 20854184]

約数ペア:

[(1, 20854184), (2, 10427092), (4, 5213546), (8, 2606773), (13, 1604168), (26, 802084), (52, 401042), (104, 200521), (239, 87256), (478, 43628), (839, 24856), (956, 21814), (1678, 12428), (1912, 10907), (3107, 6712), (3356, 6214)]