20147781279

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{8220229}}^1$

素因数の和:8220294

約数の個数: 16

約数和(自身を含む): 28935209600

約数和(自身を除く): 8787428321

約数列:

[1, 3, 19, 43, 57, 129, 817, 2451, 8220229, 24660687, 156184351, 353469847, 468553053, 1060409541, 6715927093, 20147781279]

約数ペア:

[(1, 20147781279), (3, 6715927093), (19, 1060409541), (43, 468553053), (57, 353469847), (129, 156184351), (817, 24660687), (2451, 8220229)]