21202980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{193}}^1\times {\mathrm{1831}}^1$

素因数の和:2036

約数の個数: 48

約数和(自身を含む): 59708544

約数和(自身を除く): 38505564

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 193, 386, 579, 772, 965, 1158, 1831, 1930, 2316, 2895, 3662, 3860, 5493, 5790, 7324, 9155, 10986, 11580, 18310, 21972, 27465, 36620, 54930, 109860, 353383, 706766, 1060149, 1413532, 1766915, 2120298, 3533830, 4240596, 5300745, 7067660, 10601490, 21202980]

約数ペア:

[(1, 21202980), (2, 10601490), (3, 7067660), (4, 5300745), (5, 4240596), (6, 3533830), (10, 2120298), (12, 1766915), (15, 1413532), (20, 1060149), (30, 706766), (60, 353383), (193, 109860), (386, 54930), (579, 36620), (772, 27465), (965, 21972), (1158, 18310), (1831, 11580), (1930, 10986), (2316, 9155), (2895, 7324), (3662, 5790), (3860, 5493)]