19882115

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{59}}^1\times {\mathrm{557}}^1$

素因数の和:643

約数の個数: 24

約数和(自身を含む): 26717040

約数和(自身を除く): 6834925

約数列:

[1, 5, 11, 55, 59, 121, 295, 557, 605, 649, 2785, 3245, 6127, 7139, 30635, 32863, 35695, 67397, 164315, 336985, 361493, 1807465, 3976423, 19882115]

約数ペア:

[(1, 19882115), (5, 3976423), (11, 1807465), (55, 361493), (59, 336985), (121, 164315), (295, 67397), (557, 35695), (605, 32863), (649, 30635), (2785, 7139), (3245, 6127)]