21431124

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1$

素因数の和:238

約数の個数: 144

約数和(自身を含む): 66777984

約数和(自身を除く): 45346860

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 22, 23, 26, 33, 36, 39, 44, 46, 52, 66, 69, 78, 92, 99, 117, 132, 138, 143, 156, 181, 198, 207, 234, 253, 276, 286, 299, 362, 396, 414, 429, 468, 506, 543, 572, 598, 724, 759, 828, 858, 897, 1012, 1086, 1196, 1287, 1518, 1629, 1716, 1794, 1991, 2172, 2277, 2353, 2574, 2691, 3036, 3258, 3289, 3588, 3982, 4163, 4554, 4706, 5148, 5382, 5973, 6516, 6578, 7059, 7964, 8326, 9108, 9412, 9867, 10764, 11946, 12489, 13156, 14118, 16652, 17919, 19734, 21177, 23892, 24978, 25883, 28236, 29601, 35838, 37467, 39468, 42354, 45793, 49956, 51766, 54119, 59202, 71676, 74934, 77649, 84708, 91586, 103532, 108238, 118404, 137379, 149868, 155298, 162357, 183172, 216476, 232947, 274758, 310596, 324714, 412137, 465894, 487071, 549516, 595309, 649428, 824274, 931788, 974142, 1190618, 1648548, 1785927, 1948284, 2381236, 3571854, 5357781, 7143708, 10715562, 21431124]

約数ペア:

[(1, 21431124), (2, 10715562), (3, 7143708), (4, 5357781), (6, 3571854), (9, 2381236), (11, 1948284), (12, 1785927), (13, 1648548), (18, 1190618), (22, 974142), (23, 931788), (26, 824274), (33, 649428), (36, 595309), (39, 549516), (44, 487071), (46, 465894), (52, 412137), (66, 324714), (69, 310596), (78, 274758), (92, 232947), (99, 216476), (117, 183172), (132, 162357), (138, 155298), (143, 149868), (156, 137379), (181, 118404), (198, 108238), (207, 103532), (234, 91586), (253, 84708), (276, 77649), (286, 74934), (299, 71676), (362, 59202), (396, 54119), (414, 51766), (429, 49956), (468, 45793), (506, 42354), (543, 39468), (572, 37467), (598, 35838), (724, 29601), (759, 28236), (828, 25883), (858, 24978), (897, 23892), (1012, 21177), (1086, 19734), (1196, 17919), (1287, 16652), (1518, 14118), (1629, 13156), (1716, 12489), (1794, 11946), (1991, 10764), (2172, 9867), (2277, 9412), (2353, 9108), (2574, 8326), (2691, 7964), (3036, 7059), (3258, 6578), (3289, 6516), (3588, 5973), (3982, 5382), (4163, 5148), (4554, 4706)]