20121105

素因数分解:

$3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{20021}}^1$

素因数の和:20096

約数の個数: 16

約数和(自身を含む): 32675904

約数和(自身を除く): 12554799

約数列:

[1, 3, 5, 15, 67, 201, 335, 1005, 20021, 60063, 100105, 300315, 1341407, 4024221, 6707035, 20121105]

約数ペア:

[(1, 20121105), (3, 6707035), (5, 4024221), (15, 1341407), (67, 300315), (201, 100105), (335, 60063), (1005, 20021)]