21098961

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{6679}}^1$

素因数の和:6707

約数の個数: 24

約数和(自身を含む): 34041280

約数和(自身を除く): 12942319

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 1053, 3159, 6679, 20037, 60111, 86827, 180333, 260481, 540999, 781443, 1622997, 2344329, 7032987, 21098961]

約数ペア:

[(1, 21098961), (3, 7032987), (9, 2344329), (13, 1622997), (27, 781443), (39, 540999), (81, 260481), (117, 180333), (243, 86827), (351, 60111), (1053, 20037), (3159, 6679)]