21293188

素因数分解:

$2^2\times 7^1\times {\mathrm{349}}^1\times {\mathrm{2179}}^1$

素因数の和:2539

約数の個数: 24

約数和(自身を含む): 42728000

約数和(自身を除く): 21434812

約数列:

[1, 2, 4, 7, 14, 28, 349, 698, 1396, 2179, 2443, 4358, 4886, 8716, 9772, 15253, 30506, 61012, 760471, 1520942, 3041884, 5323297, 10646594, 21293188]

約数ペア:

[(1, 21293188), (2, 10646594), (4, 5323297), (7, 3041884), (14, 1520942), (28, 760471), (349, 61012), (698, 30506), (1396, 15253), (2179, 9772), (2443, 8716), (4358, 4886)]