21122517

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31859}}^1$

素因数の和:31892

約数の個数: 16

約数和(自身を含む): 32114880

約数和(自身を除く): 10992363

約数列:

[1, 3, 13, 17, 39, 51, 221, 663, 31859, 95577, 414167, 541603, 1242501, 1624809, 7040839, 21122517]

約数ペア:

[(1, 21122517), (3, 7040839), (13, 1624809), (17, 1242501), (39, 541603), (51, 414167), (221, 95577), (663, 31859)]