20846488

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{907}}^1$

素因数の和:956

約数の個数: 48

約数和(自身を含む): 44864280

約数和(自身を除く): 24017792

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 169, 221, 338, 442, 676, 884, 907, 1352, 1768, 1814, 2873, 3628, 5746, 7256, 11492, 11791, 15419, 22984, 23582, 30838, 47164, 61676, 94328, 123352, 153283, 200447, 306566, 400894, 613132, 801788, 1226264, 1603576, 2605811, 5211622, 10423244, 20846488]

約数ペア:

[(1, 20846488), (2, 10423244), (4, 5211622), (8, 2605811), (13, 1603576), (17, 1226264), (26, 801788), (34, 613132), (52, 400894), (68, 306566), (104, 200447), (136, 153283), (169, 123352), (221, 94328), (338, 61676), (442, 47164), (676, 30838), (884, 23582), (907, 22984), (1352, 15419), (1768, 11791), (1814, 11492), (2873, 7256), (3628, 5746)]