20155409

素因数分解:

${\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:380

約数の個数: 16

約数和(自身を含む): 21934080

約数和(自身を除く): 1778671

約数列:

[1, 19, 67, 71, 223, 1273, 1349, 4237, 4757, 14941, 15833, 90383, 283879, 300827, 1060811, 20155409]

約数ペア:

[(1, 20155409), (19, 1060811), (67, 300827), (71, 283879), (223, 90383), (1273, 15833), (1349, 14941), (4237, 4757)]