20669946

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{401}}^1$

素因数の和:499

約数の個数: 48

約数和(自身を含む): 46194624

約数和(自身を除く): 25524678

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 71, 121, 142, 213, 242, 363, 401, 426, 726, 781, 802, 1203, 1562, 2343, 2406, 4411, 4686, 8591, 8822, 13233, 17182, 25773, 26466, 28471, 48521, 51546, 56942, 85413, 97042, 145563, 170826, 291126, 313181, 626362, 939543, 1879086, 3444991, 6889982, 10334973, 20669946]

約数ペア:

[(1, 20669946), (2, 10334973), (3, 6889982), (6, 3444991), (11, 1879086), (22, 939543), (33, 626362), (66, 313181), (71, 291126), (121, 170826), (142, 145563), (213, 97042), (242, 85413), (363, 56942), (401, 51546), (426, 48521), (726, 28471), (781, 26466), (802, 25773), (1203, 17182), (1562, 13233), (2343, 8822), (2406, 8591), (4411, 4686)]