21425808

素因数分解:

$2^4\times 3^1\times {\mathrm{349}}^1\times {\mathrm{1279}}^1$

素因数の和:1639

約数の個数: 40

約数和(自身を含む): 55552000

約数和(自身を除く): 34126192

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 349, 698, 1047, 1279, 1396, 2094, 2558, 2792, 3837, 4188, 5116, 5584, 7674, 8376, 10232, 15348, 16752, 20464, 30696, 61392, 446371, 892742, 1339113, 1785484, 2678226, 3570968, 5356452, 7141936, 10712904, 21425808]

約数ペア:

[(1, 21425808), (2, 10712904), (3, 7141936), (4, 5356452), (6, 3570968), (8, 2678226), (12, 1785484), (16, 1339113), (24, 892742), (48, 446371), (349, 61392), (698, 30696), (1047, 20464), (1279, 16752), (1396, 15348), (2094, 10232), (2558, 8376), (2792, 7674), (3837, 5584), (4188, 5116)]