12781305

素因数分解:

$3^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{659}}^1$

素因数の和:1101

約数の個数: 24

約数和(自身を含む): 22239360

約数和(自身を除く): 9458055

約数列:

[1, 3, 5, 9, 15, 45, 431, 659, 1293, 1977, 2155, 3295, 3879, 5931, 6465, 9885, 19395, 29655, 284029, 852087, 1420145, 2556261, 4260435, 12781305]

約数ペア:

[(1, 12781305), (3, 4260435), (5, 2556261), (9, 1420145), (15, 852087), (45, 284029), (431, 29655), (659, 19395), (1293, 9885), (1977, 6465), (2155, 5931), (3295, 3879)]