21013395

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107761}}^1$

素因数の和:107782

約数の個数: 16

約数和(自身を含む): 36208032

約数和(自身を除く): 15194637

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 107761, 323283, 538805, 1400893, 1616415, 4202679, 7004465, 21013395]

約数ペア:

[(1, 21013395), (3, 7004465), (5, 4202679), (13, 1616415), (15, 1400893), (39, 538805), (65, 323283), (195, 107761)]