19821681

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{347}}^1\times {\mathrm{577}}^1$

素因数の和:941

約数の個数: 24

約数和(自身を含む): 31378464

約数和(自身を除く): 11556783

約数列:

[1, 3, 9, 11, 33, 99, 347, 577, 1041, 1731, 3123, 3817, 5193, 6347, 11451, 19041, 34353, 57123, 200219, 600657, 1801971, 2202409, 6607227, 19821681]

約数ペア:

[(1, 19821681), (3, 6607227), (9, 2202409), (11, 1801971), (33, 600657), (99, 200219), (347, 57123), (577, 34353), (1041, 19041), (1731, 11451), (3123, 6347), (3817, 5193)]