21302556

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2273}}^1$

素因数の和:2362

約数の個数: 48

約数和(自身を含む): 55012608

約数和(自身を除く): 33710052

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 71, 132, 142, 213, 284, 426, 781, 852, 1562, 2273, 2343, 3124, 4546, 4686, 6819, 9092, 9372, 13638, 25003, 27276, 50006, 75009, 100012, 150018, 161383, 300036, 322766, 484149, 645532, 968298, 1775213, 1936596, 3550426, 5325639, 7100852, 10651278, 21302556]

約数ペア:

[(1, 21302556), (2, 10651278), (3, 7100852), (4, 5325639), (6, 3550426), (11, 1936596), (12, 1775213), (22, 968298), (33, 645532), (44, 484149), (66, 322766), (71, 300036), (132, 161383), (142, 150018), (213, 100012), (284, 75009), (426, 50006), (781, 27276), (852, 25003), (1562, 13638), (2273, 9372), (2343, 9092), (3124, 6819), (4546, 4686)]