21095883

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{7039}}^1$

素因数の和:7088

約数の個数: 20

約数和(自身を含む): 32369920

約数和(自身を除く): 11274037

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 999, 2997, 7039, 21117, 63351, 190053, 260443, 570159, 781329, 2343987, 7031961, 21095883]

約数ペア:

[(1, 21095883), (3, 7031961), (9, 2343987), (27, 781329), (37, 570159), (81, 260443), (111, 190053), (333, 63351), (999, 21117), (2997, 7039)]