21557649

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{3041}}^1$

素因数の和:3200

約数の個数: 16

約数和(自身を含む): 30663360

約数和(自身を除く): 9105711

約数列:

[1, 3, 17, 51, 139, 417, 2363, 3041, 7089, 9123, 51697, 155091, 422699, 1268097, 7185883, 21557649]

約数ペア:

[(1, 21557649), (3, 7185883), (17, 1268097), (51, 422699), (139, 155091), (417, 51697), (2363, 9123), (3041, 7089)]