21685248

素因数分解:

$2^{10}\times 3^2\times {\mathrm{13}}^1\times {\mathrm{181}}^1$

素因数の和:220

約数の個数: 132

約数和(自身を含む): 67804828

約数和(自身を除く): 46119580

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 64, 72, 78, 96, 104, 117, 128, 144, 156, 181, 192, 208, 234, 256, 288, 312, 362, 384, 416, 468, 512, 543, 576, 624, 724, 768, 832, 936, 1024, 1086, 1152, 1248, 1448, 1536, 1629, 1664, 1872, 2172, 2304, 2353, 2496, 2896, 3072, 3258, 3328, 3744, 4344, 4608, 4706, 4992, 5792, 6516, 6656, 7059, 7488, 8688, 9216, 9412, 9984, 11584, 13032, 13312, 14118, 14976, 17376, 18824, 19968, 21177, 23168, 26064, 28236, 29952, 34752, 37648, 39936, 42354, 46336, 52128, 56472, 59904, 69504, 75296, 84708, 92672, 104256, 112944, 119808, 139008, 150592, 169416, 185344, 208512, 225888, 278016, 301184, 338832, 417024, 451776, 556032, 602368, 677664, 834048, 903552, 1204736, 1355328, 1668096, 1807104, 2409472, 2710656, 3614208, 5421312, 7228416, 10842624, 21685248]

約数ペア:

[(1, 21685248), (2, 10842624), (3, 7228416), (4, 5421312), (6, 3614208), (8, 2710656), (9, 2409472), (12, 1807104), (13, 1668096), (16, 1355328), (18, 1204736), (24, 903552), (26, 834048), (32, 677664), (36, 602368), (39, 556032), (48, 451776), (52, 417024), (64, 338832), (72, 301184), (78, 278016), (96, 225888), (104, 208512), (117, 185344), (128, 169416), (144, 150592), (156, 139008), (181, 119808), (192, 112944), (208, 104256), (234, 92672), (256, 84708), (288, 75296), (312, 69504), (362, 59904), (384, 56472), (416, 52128), (468, 46336), (512, 42354), (543, 39936), (576, 37648), (624, 34752), (724, 29952), (768, 28236), (832, 26064), (936, 23168), (1024, 21177), (1086, 19968), (1152, 18824), (1248, 17376), (1448, 14976), (1536, 14118), (1629, 13312), (1664, 13032), (1872, 11584), (2172, 9984), (2304, 9412), (2353, 9216), (2496, 8688), (2896, 7488), (3072, 7059), (3258, 6656), (3328, 6516), (3744, 5792), (4344, 4992), (4608, 4706)]