81469941

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{419}}^1$

素因数の和:673

約数の個数: 32

約数和(自身を含む): 127733760

約数和(自身を除く): 46263819

約数列:

[1, 3, 7, 21, 47, 141, 197, 329, 419, 591, 987, 1257, 1379, 2933, 4137, 8799, 9259, 19693, 27777, 59079, 64813, 82543, 137851, 194439, 247629, 413553, 577801, 1733403, 3879521, 11638563, 27156647, 81469941]

約数ペア:

[(1, 81469941), (3, 27156647), (7, 11638563), (21, 3879521), (47, 1733403), (141, 577801), (197, 413553), (329, 247629), (419, 194439), (591, 137851), (987, 82543), (1257, 64813), (1379, 59079), (2933, 27777), (4137, 19693), (8799, 9259)]