20916555

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{1163}}^1$

素因数の和:1291

約数の個数: 32

約数和(自身を含む): 36875520

約数和(自身を除く): 15958965

約数列:

[1, 3, 5, 11, 15, 33, 55, 109, 165, 327, 545, 1163, 1199, 1635, 3489, 3597, 5815, 5995, 12793, 17445, 17985, 38379, 63965, 126767, 191895, 380301, 633835, 1394437, 1901505, 4183311, 6972185, 20916555]

約数ペア:

[(1, 20916555), (3, 6972185), (5, 4183311), (11, 1901505), (15, 1394437), (33, 633835), (55, 380301), (109, 191895), (165, 126767), (327, 63965), (545, 38379), (1163, 17985), (1199, 17445), (1635, 12793), (3489, 5995), (3597, 5815)]