20818602

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1301}}^1$

素因数の和:1443

約数の個数: 48

約数和(自身を含む): 51996672

約数和(自身を除く): 31178070

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 127, 254, 381, 762, 889, 1143, 1301, 1778, 2286, 2602, 2667, 3903, 5334, 7806, 8001, 9107, 11709, 16002, 18214, 23418, 27321, 54642, 81963, 163926, 165227, 330454, 495681, 991362, 1156589, 1487043, 2313178, 2974086, 3469767, 6939534, 10409301, 20818602]

約数ペア:

[(1, 20818602), (2, 10409301), (3, 6939534), (6, 3469767), (7, 2974086), (9, 2313178), (14, 1487043), (18, 1156589), (21, 991362), (42, 495681), (63, 330454), (126, 165227), (127, 163926), (254, 81963), (381, 54642), (762, 27321), (889, 23418), (1143, 18214), (1301, 16002), (1778, 11709), (2286, 9107), (2602, 8001), (2667, 7806), (3903, 5334)]