28167139

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1481}}^1$

素因数の和:1531

約数の個数: 32

約数和(自身を含む): 39836160

約数和(自身を除く): 11669021

約数列:

[1, 7, 11, 13, 19, 77, 91, 133, 143, 209, 247, 1001, 1463, 1481, 1729, 2717, 10367, 16291, 19019, 19253, 28139, 114037, 134771, 196973, 211783, 309529, 365807, 1482481, 2166703, 2560649, 4023877, 28167139]

約数ペア:

[(1, 28167139), (7, 4023877), (11, 2560649), (13, 2166703), (19, 1482481), (77, 365807), (91, 309529), (133, 211783), (143, 196973), (209, 134771), (247, 114037), (1001, 28139), (1463, 19253), (1481, 19019), (1729, 16291), (2717, 10367)]