2154945

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:321

約数の個数: 32

約数和(自身を含む): 3814272

約数和(自身を除く): 1659327

約数列:

[1, 3, 5, 13, 15, 39, 43, 65, 129, 195, 215, 257, 559, 645, 771, 1285, 1677, 2795, 3341, 3855, 8385, 10023, 11051, 16705, 33153, 50115, 55255, 143663, 165765, 430989, 718315, 2154945]

約数ペア:

[(1, 2154945), (3, 718315), (5, 430989), (13, 165765), (15, 143663), (39, 55255), (43, 50115), (65, 33153), (129, 16705), (195, 11051), (215, 10023), (257, 8385), (559, 3855), (645, 3341), (771, 2795), (1285, 1677)]