21254016

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{7907}}^1$

素因数の和:7931

約数の個数: 64

約数和(自身を含む): 64529280

約数和(自身を除く): 43275264

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 96, 112, 128, 168, 192, 224, 336, 384, 448, 672, 896, 1344, 2688, 7907, 15814, 23721, 31628, 47442, 55349, 63256, 94884, 110698, 126512, 166047, 189768, 221396, 253024, 332094, 379536, 442792, 506048, 664188, 759072, 885584, 1012096, 1328376, 1518144, 1771168, 2656752, 3036288, 3542336, 5313504, 7084672, 10627008, 21254016]

約数ペア:

[(1, 21254016), (2, 10627008), (3, 7084672), (4, 5313504), (6, 3542336), (7, 3036288), (8, 2656752), (12, 1771168), (14, 1518144), (16, 1328376), (21, 1012096), (24, 885584), (28, 759072), (32, 664188), (42, 506048), (48, 442792), (56, 379536), (64, 332094), (84, 253024), (96, 221396), (112, 189768), (128, 166047), (168, 126512), (192, 110698), (224, 94884), (336, 63256), (384, 55349), (448, 47442), (672, 31628), (896, 23721), (1344, 15814), (2688, 7907)]