21540116

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{1033}}^1$

素因数の和:1451

約数の個数: 24

約数和(自身を含む): 40735464

約数和(自身を除く): 19195348

約数列:

[1, 2, 4, 13, 26, 52, 401, 802, 1033, 1604, 2066, 4132, 5213, 10426, 13429, 20852, 26858, 53716, 414233, 828466, 1656932, 5385029, 10770058, 21540116]

約数ペア:

[(1, 21540116), (2, 10770058), (4, 5385029), (13, 1656932), (26, 828466), (52, 414233), (401, 53716), (802, 26858), (1033, 20852), (1604, 13429), (2066, 10426), (4132, 5213)]