21543858

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2803}}^1$

素因数の和:2879

約数の個数: 48

約数和(自身を含む): 54240576

約数和(自身を除く): 32696718

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 61, 63, 122, 126, 183, 366, 427, 549, 854, 1098, 1281, 2562, 2803, 3843, 5606, 7686, 8409, 16818, 19621, 25227, 39242, 50454, 58863, 117726, 170983, 176589, 341966, 353178, 512949, 1025898, 1196881, 1538847, 2393762, 3077694, 3590643, 7181286, 10771929, 21543858]

約数ペア:

[(1, 21543858), (2, 10771929), (3, 7181286), (6, 3590643), (7, 3077694), (9, 2393762), (14, 1538847), (18, 1196881), (21, 1025898), (42, 512949), (61, 353178), (63, 341966), (122, 176589), (126, 170983), (183, 117726), (366, 58863), (427, 50454), (549, 39242), (854, 25227), (1098, 19621), (1281, 16818), (2562, 8409), (2803, 7686), (3843, 5606)]