21469245

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1471}}^1$

素因数の和:1625

約数の個数: 32

約数和(自身を含む): 39567360

約数和(自身を除く): 18098115

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 139, 417, 695, 973, 1471, 2085, 2919, 4413, 4865, 7355, 10297, 14595, 22065, 30891, 51485, 154455, 204469, 613407, 1022345, 1431283, 3067035, 4293849, 7156415, 21469245]

約数ペア:

[(1, 21469245), (3, 7156415), (5, 4293849), (7, 3067035), (15, 1431283), (21, 1022345), (35, 613407), (105, 204469), (139, 154455), (417, 51485), (695, 30891), (973, 22065), (1471, 14595), (2085, 10297), (2919, 7355), (4413, 4865)]