21723856

素因数分解:

$2^4\times 7^2\times {\mathrm{11}}^2\times {\mathrm{229}}^1$

素因数の和:273

約数の個数: 90

約数和(自身を含む): 54052530

約数和(自身を除く): 32328674

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 49, 56, 77, 88, 98, 112, 121, 154, 176, 196, 229, 242, 308, 392, 458, 484, 539, 616, 784, 847, 916, 968, 1078, 1232, 1603, 1694, 1832, 1936, 2156, 2519, 3206, 3388, 3664, 4312, 5038, 5929, 6412, 6776, 8624, 10076, 11221, 11858, 12824, 13552, 17633, 20152, 22442, 23716, 25648, 27709, 35266, 40304, 44884, 47432, 55418, 70532, 89768, 94864, 110836, 123431, 141064, 179536, 193963, 221672, 246862, 282128, 387926, 443344, 493724, 775852, 987448, 1357741, 1551704, 1974896, 2715482, 3103408, 5430964, 10861928, 21723856]

約数ペア:

[(1, 21723856), (2, 10861928), (4, 5430964), (7, 3103408), (8, 2715482), (11, 1974896), (14, 1551704), (16, 1357741), (22, 987448), (28, 775852), (44, 493724), (49, 443344), (56, 387926), (77, 282128), (88, 246862), (98, 221672), (112, 193963), (121, 179536), (154, 141064), (176, 123431), (196, 110836), (229, 94864), (242, 89768), (308, 70532), (392, 55418), (458, 47432), (484, 44884), (539, 40304), (616, 35266), (784, 27709), (847, 25648), (916, 23716), (968, 22442), (1078, 20152), (1232, 17633), (1603, 13552), (1694, 12824), (1832, 11858), (1936, 11221), (2156, 10076), (2519, 8624), (3206, 6776), (3388, 6412), (3664, 5929), (4312, 5038)]