19954869

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{431}}^1$

素因数の和:529

約数の個数: 32

約数和(自身を含む): 30855168

約数和(自身を除く): 10900299

約数列:

[1, 3, 11, 23, 33, 61, 69, 183, 253, 431, 671, 759, 1293, 1403, 2013, 4209, 4741, 9913, 14223, 15433, 26291, 29739, 46299, 78873, 109043, 289201, 327129, 604693, 867603, 1814079, 6651623, 19954869]

約数ペア:

[(1, 19954869), (3, 6651623), (11, 1814079), (23, 867603), (33, 604693), (61, 327129), (69, 289201), (183, 109043), (253, 78873), (431, 46299), (671, 29739), (759, 26291), (1293, 15433), (1403, 14223), (2013, 9913), (4209, 4741)]