1221105

素因数分解:

$3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{641}}^1$

素因数の和:776

約数の個数: 16

約数和(自身を含む): 1972224

約数和(自身を除く): 751119

約数列:

[1, 3, 5, 15, 127, 381, 635, 641, 1905, 1923, 3205, 9615, 81407, 244221, 407035, 1221105]

約数ペア:

[(1, 1221105), (3, 407035), (5, 244221), (15, 81407), (127, 9615), (381, 3205), (635, 1923), (641, 1905)]