21000391654

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{401}}^1\times {\mathrm{32609}}^1$

素因数の和:33096

約数の個数: 32

約数和(自身を含む): 34922962080

約数和(自身を除く): 13922570426

約数列:

[1, 2, 11, 22, 73, 146, 401, 802, 803, 1606, 4411, 8822, 29273, 32609, 58546, 65218, 322003, 358699, 644006, 717398, 2380457, 4760914, 13076209, 26152418, 26185027, 52370054, 143838299, 287676598, 954563257, 1909126514, 10500195827, 21000391654]

約数ペア:

[(1, 21000391654), (2, 10500195827), (11, 1909126514), (22, 954563257), (73, 287676598), (146, 143838299), (401, 52370054), (802, 26185027), (803, 26152418), (1606, 13076209), (4411, 4760914), (8822, 2380457), (29273, 717398), (32609, 644006), (58546, 358699), (65218, 322003)]