21905026

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{401}}^1$

素因数の和:618

約数の個数: 32

約数和(自身を含む): 38900736

約数和(自身を除く): 16995710

約数列:

[1, 2, 11, 13, 22, 26, 143, 191, 286, 382, 401, 802, 2101, 2483, 4202, 4411, 4966, 5213, 8822, 10426, 27313, 54626, 57343, 76591, 114686, 153182, 842501, 995683, 1685002, 1991366, 10952513, 21905026]

約数ペア:

[(1, 21905026), (2, 10952513), (11, 1991366), (13, 1685002), (22, 995683), (26, 842501), (143, 153182), (191, 114686), (286, 76591), (382, 57343), (401, 54626), (802, 27313), (2101, 10426), (2483, 8822), (4202, 5213), (4411, 4966)]