21594280

素因数分解:

$2^3\times 5^1\times {\mathrm{367}}^1\times {\mathrm{1471}}^1$

素因数の和:1849

約数の個数: 32

約数和(自身を含む): 48752640

約数和(自身を除く): 27158360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 367, 734, 1468, 1471, 1835, 2936, 2942, 3670, 5884, 7340, 7355, 11768, 14680, 14710, 29420, 58840, 539857, 1079714, 2159428, 2699285, 4318856, 5398570, 10797140, 21594280]

約数ペア:

[(1, 21594280), (2, 10797140), (4, 5398570), (5, 4318856), (8, 2699285), (10, 2159428), (20, 1079714), (40, 539857), (367, 58840), (734, 29420), (1468, 14710), (1471, 14680), (1835, 11768), (2936, 7355), (2942, 7340), (3670, 5884)]