20931454

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:304

約数の個数: 32

約数和(自身を含む): 34594560

約数和(自身を除く): 13663106

約数列:

[1, 2, 17, 34, 43, 86, 103, 139, 206, 278, 731, 1462, 1751, 2363, 3502, 4429, 4726, 5977, 8858, 11954, 14317, 28634, 75293, 101609, 150586, 203218, 243389, 486778, 615631, 1231262, 10465727, 20931454]

約数ペア:

[(1, 20931454), (2, 10465727), (17, 1231262), (34, 615631), (43, 486778), (86, 243389), (103, 203218), (139, 150586), (206, 101609), (278, 75293), (731, 28634), (1462, 14317), (1751, 11954), (2363, 8858), (3502, 5977), (4429, 4726)]