21061365

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{108007}}^1$

素因数の和:108028

約数の個数: 16

約数和(自身を含む): 36290688

約数和(自身を除く): 15229323

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 108007, 324021, 540035, 1404091, 1620105, 4212273, 7020455, 21061365]

約数ペア:

[(1, 21061365), (3, 7020455), (5, 4212273), (13, 1620105), (15, 1404091), (39, 540035), (65, 324021), (195, 108007)]