21871746

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{619}}^1$

素因数の和:791

約数の個数: 48

約数和(自身を含む): 51455040

約数和(自身を除く): 29583294

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 151, 234, 302, 453, 619, 906, 1238, 1359, 1857, 1963, 2718, 3714, 3926, 5571, 5889, 8047, 11142, 11778, 16094, 17667, 24141, 35334, 48282, 72423, 93469, 144846, 186938, 280407, 560814, 841221, 1215097, 1682442, 2430194, 3645291, 7290582, 10935873, 21871746]

約数ペア:

[(1, 21871746), (2, 10935873), (3, 7290582), (6, 3645291), (9, 2430194), (13, 1682442), (18, 1215097), (26, 841221), (39, 560814), (78, 280407), (117, 186938), (151, 144846), (234, 93469), (302, 72423), (453, 48282), (619, 35334), (906, 24141), (1238, 17667), (1359, 16094), (1857, 11778), (1963, 11142), (2718, 8047), (3714, 5889), (3926, 5571)]