128418021

素因数分解:

$3^3\times {\mathrm{557}}^1\times {\mathrm{8539}}^1$

素因数の和:9105

約数の個数: 16

約数和(自身を含む): 190612800

約数和(自身を除く): 62194779

約数列:

[1, 3, 9, 27, 557, 1671, 5013, 8539, 15039, 25617, 76851, 230553, 4756223, 14268669, 42806007, 128418021]

約数ペア:

[(1, 128418021), (3, 42806007), (9, 14268669), (27, 4756223), (557, 230553), (1671, 76851), (5013, 25617), (8539, 15039)]