20941284

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1$

素因数の和:305

約数の個数: 96

約数和(自身を含む): 61014016

約数和(自身を除く): 40072732

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 127, 151, 156, 182, 254, 273, 302, 364, 381, 453, 508, 546, 604, 762, 889, 906, 1057, 1092, 1524, 1651, 1778, 1812, 1963, 2114, 2667, 3171, 3302, 3556, 3926, 4228, 4953, 5334, 5889, 6342, 6604, 7852, 9906, 10668, 11557, 11778, 12684, 13741, 19177, 19812, 23114, 23556, 27482, 34671, 38354, 41223, 46228, 54964, 57531, 69342, 76708, 82446, 115062, 134239, 138684, 164892, 230124, 249301, 268478, 402717, 498602, 536956, 747903, 805434, 997204, 1495806, 1610868, 1745107, 2991612, 3490214, 5235321, 6980428, 10470642, 20941284]

約数ペア:

[(1, 20941284), (2, 10470642), (3, 6980428), (4, 5235321), (6, 3490214), (7, 2991612), (12, 1745107), (13, 1610868), (14, 1495806), (21, 997204), (26, 805434), (28, 747903), (39, 536956), (42, 498602), (52, 402717), (78, 268478), (84, 249301), (91, 230124), (127, 164892), (151, 138684), (156, 134239), (182, 115062), (254, 82446), (273, 76708), (302, 69342), (364, 57531), (381, 54964), (453, 46228), (508, 41223), (546, 38354), (604, 34671), (762, 27482), (889, 23556), (906, 23114), (1057, 19812), (1092, 19177), (1524, 13741), (1651, 12684), (1778, 11778), (1812, 11557), (1963, 10668), (2114, 9906), (2667, 7852), (3171, 6604), (3302, 6342), (3556, 5889), (3926, 5334), (4228, 4953)]