21019776

素因数分解:

$2^7\times 3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:146

約数の個数: 128

約数和(自身を含む): 61036800

約数和(自身を除く): 40017024

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 32, 38, 43, 48, 57, 64, 67, 76, 86, 96, 114, 128, 129, 134, 152, 172, 192, 201, 228, 258, 268, 304, 344, 384, 402, 456, 516, 536, 608, 688, 804, 817, 912, 1032, 1072, 1216, 1273, 1376, 1608, 1634, 1824, 2064, 2144, 2432, 2451, 2546, 2752, 2881, 3216, 3268, 3648, 3819, 4128, 4288, 4902, 5092, 5504, 5762, 6432, 6536, 7296, 7638, 8256, 8576, 8643, 9804, 10184, 11524, 12864, 13072, 15276, 16512, 17286, 19608, 20368, 23048, 25728, 26144, 30552, 34572, 39216, 40736, 46096, 52288, 54739, 61104, 69144, 78432, 81472, 92192, 104576, 109478, 122208, 138288, 156864, 162944, 164217, 184384, 218956, 244416, 276576, 313728, 328434, 368768, 437912, 488832, 553152, 656868, 875824, 1106304, 1313736, 1751648, 2627472, 3503296, 5254944, 7006592, 10509888, 21019776]

約数ペア:

[(1, 21019776), (2, 10509888), (3, 7006592), (4, 5254944), (6, 3503296), (8, 2627472), (12, 1751648), (16, 1313736), (19, 1106304), (24, 875824), (32, 656868), (38, 553152), (43, 488832), (48, 437912), (57, 368768), (64, 328434), (67, 313728), (76, 276576), (86, 244416), (96, 218956), (114, 184384), (128, 164217), (129, 162944), (134, 156864), (152, 138288), (172, 122208), (192, 109478), (201, 104576), (228, 92192), (258, 81472), (268, 78432), (304, 69144), (344, 61104), (384, 54739), (402, 52288), (456, 46096), (516, 40736), (536, 39216), (608, 34572), (688, 30552), (804, 26144), (817, 25728), (912, 23048), (1032, 20368), (1072, 19608), (1216, 17286), (1273, 16512), (1376, 15276), (1608, 13072), (1634, 12864), (1824, 11524), (2064, 10184), (2144, 9804), (2432, 8643), (2451, 8576), (2546, 8256), (2752, 7638), (2881, 7296), (3216, 6536), (3268, 6432), (3648, 5762), (3819, 5504), (4128, 5092), (4288, 4902)]