21000768261

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{293}}^1\times {\mathrm{29753}}^1$

素因数の和:30133

約数の個数: 32

約数和(自身を含む): 31071745152

約数和(自身を除く): 10070976891

約数列:

[1, 3, 11, 33, 73, 219, 293, 803, 879, 2409, 3223, 9669, 21389, 29753, 64167, 89259, 235279, 327283, 705837, 981849, 2171969, 6515907, 8717629, 23891659, 26152887, 71674977, 95893919, 287681757, 636386917, 1909160751, 7000256087, 21000768261]

約数ペア:

[(1, 21000768261), (3, 7000256087), (11, 1909160751), (33, 636386917), (73, 287681757), (219, 95893919), (293, 71674977), (803, 26152887), (879, 23891659), (2409, 8717629), (3223, 6515907), (9669, 2171969), (21389, 981849), (29753, 705837), (64167, 327283), (89259, 235279)]