21759621

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{7643}}^1$

素因数の和:7732

約数の個数: 16

約数和(自身を含む): 31676736

約数和(自身を除く): 9917115

約数列:

[1, 3, 13, 39, 73, 219, 949, 2847, 7643, 22929, 99359, 298077, 557939, 1673817, 7253207, 21759621]

約数ペア:

[(1, 21759621), (3, 7253207), (13, 1673817), (39, 557939), (73, 298077), (219, 99359), (949, 22929), (2847, 7643)]