21459828

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{5981}}^1$

素因数の和:6024

約数の個数: 48

約数和(自身を含む): 56278656

約数和(自身を除く): 34818828

約数列:

[1, 2, 3, 4, 6, 12, 13, 23, 26, 39, 46, 52, 69, 78, 92, 138, 156, 276, 299, 598, 897, 1196, 1794, 3588, 5981, 11962, 17943, 23924, 35886, 71772, 77753, 137563, 155506, 233259, 275126, 311012, 412689, 466518, 550252, 825378, 933036, 1650756, 1788319, 3576638, 5364957, 7153276, 10729914, 21459828]

約数ペア:

[(1, 21459828), (2, 10729914), (3, 7153276), (4, 5364957), (6, 3576638), (12, 1788319), (13, 1650756), (23, 933036), (26, 825378), (39, 550252), (46, 466518), (52, 412689), (69, 311012), (78, 275126), (92, 233259), (138, 155506), (156, 137563), (276, 77753), (299, 71772), (598, 35886), (897, 23924), (1196, 17943), (1794, 11962), (3588, 5981)]