21219072

素因数分解:

$2^8\times 3^1\times 7^1\times {\mathrm{3947}}^1$

素因数の和:3973

約数の個数: 72

約数和(自身を含む): 64557696

約数和(自身を除く): 43338624

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, 256, 336, 384, 448, 672, 768, 896, 1344, 1792, 2688, 3947, 5376, 7894, 11841, 15788, 23682, 27629, 31576, 47364, 55258, 63152, 82887, 94728, 110516, 126304, 165774, 189456, 221032, 252608, 331548, 378912, 442064, 505216, 663096, 757824, 884128, 1010432, 1326192, 1515648, 1768256, 2652384, 3031296, 3536512, 5304768, 7073024, 10609536, 21219072]

約数ペア:

[(1, 21219072), (2, 10609536), (3, 7073024), (4, 5304768), (6, 3536512), (7, 3031296), (8, 2652384), (12, 1768256), (14, 1515648), (16, 1326192), (21, 1010432), (24, 884128), (28, 757824), (32, 663096), (42, 505216), (48, 442064), (56, 378912), (64, 331548), (84, 252608), (96, 221032), (112, 189456), (128, 165774), (168, 126304), (192, 110516), (224, 94728), (256, 82887), (336, 63152), (384, 55258), (448, 47364), (672, 31576), (768, 27629), (896, 23682), (1344, 15788), (1792, 11841), (2688, 7894), (3947, 5376)]