21057101

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{631}}^1$

素因数の和:812

約数の個数: 16

約数和(自身を含む): 24208128

約数和(自身を除く): 3151027

約数列:

[1, 13, 17, 151, 221, 631, 1963, 2567, 8203, 10727, 33371, 95281, 139451, 1238653, 1619777, 21057101]

約数ペア:

[(1, 21057101), (13, 1619777), (17, 1238653), (151, 139451), (221, 95281), (631, 33371), (1963, 10727), (2567, 8203)]