21557556

素因数分解:

$2^2\times 3^3\times {\mathrm{29}}^1\times {\mathrm{6883}}^1$

素因数の和:6925

約数の個数: 48

約数和(自身を含む): 57825600

約数和(自身を除く): 36268044

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 29, 36, 54, 58, 87, 108, 116, 174, 261, 348, 522, 783, 1044, 1566, 3132, 6883, 13766, 20649, 27532, 41298, 61947, 82596, 123894, 185841, 199607, 247788, 371682, 399214, 598821, 743364, 798428, 1197642, 1796463, 2395284, 3592926, 5389389, 7185852, 10778778, 21557556]

約数ペア:

[(1, 21557556), (2, 10778778), (3, 7185852), (4, 5389389), (6, 3592926), (9, 2395284), (12, 1796463), (18, 1197642), (27, 798428), (29, 743364), (36, 598821), (54, 399214), (58, 371682), (87, 247788), (108, 199607), (116, 185841), (174, 123894), (261, 82596), (348, 61947), (522, 41298), (783, 27532), (1044, 20649), (1566, 13766), (3132, 6883)]