217822891

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{359}}^1\times {\mathrm{4243}}^1$

素因数の和:4626

約数の個数: 16

約数和(自身を含む): 256677120

約数和(自身を除く): 38854229

約数列:

[1, 11, 13, 143, 359, 3949, 4243, 4667, 46673, 51337, 55159, 606749, 1523237, 16755607, 19802081, 217822891]

約数ペア:

[(1, 217822891), (11, 19802081), (13, 16755607), (143, 1523237), (359, 606749), (3949, 55159), (4243, 51337), (4667, 46673)]