20916864

素因数分解:

$2^7\times 3^2\times {\mathrm{67}}^1\times {\mathrm{271}}^1$

素因数の和:358

約数の個数: 96

約数和(自身を含む): 61314240

約数和(自身を除く): 40397376

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 67, 72, 96, 128, 134, 144, 192, 201, 268, 271, 288, 384, 402, 536, 542, 576, 603, 804, 813, 1072, 1084, 1152, 1206, 1608, 1626, 2144, 2168, 2412, 2439, 3216, 3252, 4288, 4336, 4824, 4878, 6432, 6504, 8576, 8672, 9648, 9756, 12864, 13008, 17344, 18157, 19296, 19512, 25728, 26016, 34688, 36314, 38592, 39024, 52032, 54471, 72628, 77184, 78048, 104064, 108942, 145256, 156096, 163413, 217884, 290512, 312192, 326826, 435768, 581024, 653652, 871536, 1162048, 1307304, 1743072, 2324096, 2614608, 3486144, 5229216, 6972288, 10458432, 20916864]

約数ペア:

[(1, 20916864), (2, 10458432), (3, 6972288), (4, 5229216), (6, 3486144), (8, 2614608), (9, 2324096), (12, 1743072), (16, 1307304), (18, 1162048), (24, 871536), (32, 653652), (36, 581024), (48, 435768), (64, 326826), (67, 312192), (72, 290512), (96, 217884), (128, 163413), (134, 156096), (144, 145256), (192, 108942), (201, 104064), (268, 78048), (271, 77184), (288, 72628), (384, 54471), (402, 52032), (536, 39024), (542, 38592), (576, 36314), (603, 34688), (804, 26016), (813, 25728), (1072, 19512), (1084, 19296), (1152, 18157), (1206, 17344), (1608, 13008), (1626, 12864), (2144, 9756), (2168, 9648), (2412, 8672), (2439, 8576), (3216, 6504), (3252, 6432), (4288, 4878), (4336, 4824)]