21584020

素因数分解:

$2^2\times 5^1\times {\mathrm{461}}^1\times {\mathrm{2341}}^1$

素因数の和:2811

約数の個数: 24

約数和(自身を含む): 45444168

約数和(自身を除く): 23860148

約数列:

[1, 2, 4, 5, 10, 20, 461, 922, 1844, 2305, 2341, 4610, 4682, 9220, 9364, 11705, 23410, 46820, 1079201, 2158402, 4316804, 5396005, 10792010, 21584020]

約数ペア:

[(1, 21584020), (2, 10792010), (4, 5396005), (5, 4316804), (10, 2158402), (20, 1079201), (461, 46820), (922, 23410), (1844, 11705), (2305, 9364), (2341, 9220), (4610, 4682)]