21137724

素因数分解:

$2^2\times 3^2\times {\mathrm{223}}^1\times {\mathrm{2633}}^1$

素因数の和:2866

約数の個数: 36

約数和(自身を含む): 53691456

約数和(自身を除く): 32553732

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 223, 446, 669, 892, 1338, 2007, 2633, 2676, 4014, 5266, 7899, 8028, 10532, 15798, 23697, 31596, 47394, 94788, 587159, 1174318, 1761477, 2348636, 3522954, 5284431, 7045908, 10568862, 21137724]

約数ペア:

[(1, 21137724), (2, 10568862), (3, 7045908), (4, 5284431), (6, 3522954), (9, 2348636), (12, 1761477), (18, 1174318), (36, 587159), (223, 94788), (446, 47394), (669, 31596), (892, 23697), (1338, 15798), (2007, 10532), (2633, 8028), (2676, 7899), (4014, 5266)]