17938921

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17921}}^1$

素因数の和:17952

約数の個数: 16

約数和(自身を含む): 24087168

約数和(自身を除く): 6148247

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 17921, 125447, 197131, 232973, 1379917, 1630811, 2562703, 17938921]

約数ペア:

[(1, 17938921), (7, 2562703), (11, 1630811), (13, 1379917), (77, 232973), (91, 197131), (143, 125447), (1001, 17921)]