21101248

素因数分解:

$2^6\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:142

約数の個数: 112

約数和(自身を含む): 52506880

約数和(自身を除く): 31405632

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 37, 38, 56, 64, 67, 74, 76, 112, 133, 134, 148, 152, 224, 259, 266, 268, 296, 304, 448, 469, 518, 532, 536, 592, 608, 703, 938, 1036, 1064, 1072, 1184, 1216, 1273, 1406, 1876, 2072, 2128, 2144, 2368, 2479, 2546, 2812, 3752, 4144, 4256, 4288, 4921, 4958, 5092, 5624, 7504, 8288, 8512, 8911, 9842, 9916, 10184, 11248, 15008, 16576, 17353, 17822, 19684, 19832, 20368, 22496, 30016, 34706, 35644, 39368, 39664, 40736, 44992, 47101, 69412, 71288, 78736, 79328, 81472, 94202, 138824, 142576, 157472, 158656, 188404, 277648, 285152, 314944, 329707, 376808, 555296, 570304, 659414, 753616, 1110592, 1318828, 1507232, 2637656, 3014464, 5275312, 10550624, 21101248]

約数ペア:

[(1, 21101248), (2, 10550624), (4, 5275312), (7, 3014464), (8, 2637656), (14, 1507232), (16, 1318828), (19, 1110592), (28, 753616), (32, 659414), (37, 570304), (38, 555296), (56, 376808), (64, 329707), (67, 314944), (74, 285152), (76, 277648), (112, 188404), (133, 158656), (134, 157472), (148, 142576), (152, 138824), (224, 94202), (259, 81472), (266, 79328), (268, 78736), (296, 71288), (304, 69412), (448, 47101), (469, 44992), (518, 40736), (532, 39664), (536, 39368), (592, 35644), (608, 34706), (703, 30016), (938, 22496), (1036, 20368), (1064, 19832), (1072, 19684), (1184, 17822), (1216, 17353), (1273, 16576), (1406, 15008), (1876, 11248), (2072, 10184), (2128, 9916), (2144, 9842), (2368, 8911), (2479, 8512), (2546, 8288), (2812, 7504), (3752, 5624), (4144, 5092), (4256, 4958), (4288, 4921)]