21167280309

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1993}}^1\times {\mathrm{13669}}^1$

素因数の和:15709

約数の個数: 32

約数和(自身を含む): 33145703680

約数和(自身を除く): 11978423371

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 1993, 5979, 13669, 13951, 41007, 41853, 73741, 95683, 221223, 287049, 505753, 516187, 1517259, 1548561, 3540271, 10620813, 27242317, 81726951, 190696219, 572088657, 1007965729, 3023897187, 7055760103, 21167280309]

約数ペア:

[(1, 21167280309), (3, 7055760103), (7, 3023897187), (21, 1007965729), (37, 572088657), (111, 190696219), (259, 81726951), (777, 27242317), (1993, 10620813), (5979, 3540271), (13669, 1548561), (13951, 1517259), (41007, 516187), (41853, 505753), (73741, 287049), (95683, 221223)]