20768156913

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1\times {\mathrm{1171}}^1$

素因数の和:1403

約数の個数: 96

約数和(自身を含む): 35092942848

約数和(自身を除く): 14324785935

約数列:

[1, 3, 7, 17, 21, 47, 49, 51, 119, 141, 147, 151, 329, 357, 453, 799, 833, 987, 1057, 1171, 2303, 2397, 2499, 2567, 3171, 3513, 5593, 6909, 7097, 7399, 7701, 8197, 16779, 17969, 19907, 21291, 22197, 24591, 39151, 49679, 53907, 55037, 57379, 59721, 117453, 120649, 125783, 139349, 149037, 165111, 172137, 176821, 347753, 361947, 377349, 385259, 418047, 530463, 844543, 935629, 975443, 1043259, 1155777, 1237747, 2533629, 2696813, 2806887, 2926329, 3005957, 3713241, 5911801, 6549403, 8090439, 8310587, 8664229, 9017871, 17735403, 19648209, 21041699, 24931761, 25992687, 45845821, 58174109, 63125097, 137537463, 141279979, 147291893, 174522327, 407218763, 423839937, 441875679, 988959853, 1221656289, 2966879559, 6922718971, 20768156913]

約数ペア:

[(1, 20768156913), (3, 6922718971), (7, 2966879559), (17, 1221656289), (21, 988959853), (47, 441875679), (49, 423839937), (51, 407218763), (119, 174522327), (141, 147291893), (147, 141279979), (151, 137537463), (329, 63125097), (357, 58174109), (453, 45845821), (799, 25992687), (833, 24931761), (987, 21041699), (1057, 19648209), (1171, 17735403), (2303, 9017871), (2397, 8664229), (2499, 8310587), (2567, 8090439), (3171, 6549403), (3513, 5911801), (5593, 3713241), (6909, 3005957), (7097, 2926329), (7399, 2806887), (7701, 2696813), (8197, 2533629), (16779, 1237747), (17969, 1155777), (19907, 1043259), (21291, 975443), (22197, 935629), (24591, 844543), (39151, 530463), (49679, 418047), (53907, 385259), (55037, 377349), (57379, 361947), (59721, 347753), (117453, 176821), (120649, 172137), (125783, 165111), (139349, 149037)]