21300664

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{229}}^1$

素因数の和:404

約数の個数: 64

約数和(自身を含む): 50342400

約数和(自身を除く): 29041736

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 151, 154, 229, 302, 308, 458, 604, 616, 916, 1057, 1208, 1603, 1661, 1832, 2114, 2519, 3206, 3322, 4228, 5038, 6412, 6644, 8456, 10076, 11627, 12824, 13288, 17633, 20152, 23254, 34579, 35266, 46508, 69158, 70532, 93016, 138316, 141064, 242053, 276632, 380369, 484106, 760738, 968212, 1521476, 1936424, 2662583, 3042952, 5325166, 10650332, 21300664]

約数ペア:

[(1, 21300664), (2, 10650332), (4, 5325166), (7, 3042952), (8, 2662583), (11, 1936424), (14, 1521476), (22, 968212), (28, 760738), (44, 484106), (56, 380369), (77, 276632), (88, 242053), (151, 141064), (154, 138316), (229, 93016), (302, 70532), (308, 69158), (458, 46508), (604, 35266), (616, 34579), (916, 23254), (1057, 20152), (1208, 17633), (1603, 13288), (1661, 12824), (1832, 11627), (2114, 10076), (2519, 8456), (3206, 6644), (3322, 6412), (4228, 5038)]