21685268

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{547}}^1$

素因数の和:632

約数の個数: 48

約数和(自身を含む): 44743104

約数和(自身を除く): 23057836

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 53, 68, 106, 187, 212, 374, 547, 583, 748, 901, 1094, 1166, 1802, 2188, 2332, 3604, 6017, 9299, 9911, 12034, 18598, 19822, 24068, 28991, 37196, 39644, 57982, 102289, 115964, 204578, 318901, 409156, 492847, 637802, 985694, 1275604, 1971388, 5421317, 10842634, 21685268]

約数ペア:

[(1, 21685268), (2, 10842634), (4, 5421317), (11, 1971388), (17, 1275604), (22, 985694), (34, 637802), (44, 492847), (53, 409156), (68, 318901), (106, 204578), (187, 115964), (212, 102289), (374, 57982), (547, 39644), (583, 37196), (748, 28991), (901, 24068), (1094, 19822), (1166, 18598), (1802, 12034), (2188, 9911), (2332, 9299), (3604, 6017)]