21310367757

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53409443}}^1$

素因数の和:53409472

約数の個数: 16

約数和(自身を含む): 34182044160

約数和(自身を除く): 12871676403

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 53409443, 160228329, 373866101, 1014779417, 1121598303, 3044338251, 7103455919, 21310367757]

約数ペア:

[(1, 21310367757), (3, 7103455919), (7, 3044338251), (19, 1121598303), (21, 1014779417), (57, 373866101), (133, 160228329), (399, 53409443)]