19197860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{7933}}^1$

素因数の和:7964

約数の個数: 36

約数和(自身を含む): 44319324

約数和(自身を除く): 25121464

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 7933, 15866, 31732, 39665, 79330, 87263, 158660, 174526, 349052, 436315, 872630, 959893, 1745260, 1919786, 3839572, 4799465, 9598930, 19197860]

約数ペア:

[(1, 19197860), (2, 9598930), (4, 4799465), (5, 3839572), (10, 1919786), (11, 1745260), (20, 959893), (22, 872630), (44, 436315), (55, 349052), (110, 174526), (121, 158660), (220, 87263), (242, 79330), (484, 39665), (605, 31732), (1210, 15866), (2420, 7933)]