20845884

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{569}}^1$

素因数の和:690

約数の個数: 48

約数和(自身を含む): 50561280

約数和(自身を除く): 29715396

約数列:

[1, 2, 3, 4, 6, 12, 43, 71, 86, 129, 142, 172, 213, 258, 284, 426, 516, 569, 852, 1138, 1707, 2276, 3053, 3414, 6106, 6828, 9159, 12212, 18318, 24467, 36636, 40399, 48934, 73401, 80798, 97868, 121197, 146802, 161596, 242394, 293604, 484788, 1737157, 3474314, 5211471, 6948628, 10422942, 20845884]

約数ペア:

[(1, 20845884), (2, 10422942), (3, 6948628), (4, 5211471), (6, 3474314), (12, 1737157), (43, 484788), (71, 293604), (86, 242394), (129, 161596), (142, 146802), (172, 121197), (213, 97868), (258, 80798), (284, 73401), (426, 48934), (516, 40399), (569, 36636), (852, 24467), (1138, 18318), (1707, 12212), (2276, 9159), (3053, 6828), (3414, 6106)]