21508974

素因数分解:

$2^1\times 3^2\times {\mathrm{97}}^2\times {\mathrm{127}}^1$

素因数の和:329

約数の個数: 36

約数和(自身を含む): 47458944

約数和(自身を除く): 25949970

約数列:

[1, 2, 3, 6, 9, 18, 97, 127, 194, 254, 291, 381, 582, 762, 873, 1143, 1746, 2286, 9409, 12319, 18818, 24638, 28227, 36957, 56454, 73914, 84681, 110871, 169362, 221742, 1194943, 2389886, 3584829, 7169658, 10754487, 21508974]

約数ペア:

[(1, 21508974), (2, 10754487), (3, 7169658), (6, 3584829), (9, 2389886), (18, 1194943), (97, 221742), (127, 169362), (194, 110871), (254, 84681), (291, 73914), (381, 56454), (582, 36957), (762, 28227), (873, 24638), (1143, 18818), (1746, 12319), (2286, 9409)]