21687132

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1303}}^1$

素因数の和:1402

約数の個数: 48

約数和(自身を含む): 54037760

約数和(自身を除く): 32350628

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 73, 76, 114, 146, 219, 228, 292, 438, 876, 1303, 1387, 2606, 2774, 3909, 4161, 5212, 5548, 7818, 8322, 15636, 16644, 24757, 49514, 74271, 95119, 99028, 148542, 190238, 285357, 297084, 380476, 570714, 1141428, 1807261, 3614522, 5421783, 7229044, 10843566, 21687132]

約数ペア:

[(1, 21687132), (2, 10843566), (3, 7229044), (4, 5421783), (6, 3614522), (12, 1807261), (19, 1141428), (38, 570714), (57, 380476), (73, 297084), (76, 285357), (114, 190238), (146, 148542), (219, 99028), (228, 95119), (292, 74271), (438, 49514), (876, 24757), (1303, 16644), (1387, 15636), (2606, 8322), (2774, 7818), (3909, 5548), (4161, 5212)]