40894217

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:273

約数の個数: 32

約数和(自身を含む): 52496640

約数和(自身を除く): 11602423

約数列:

[1, 7, 13, 53, 61, 91, 139, 371, 427, 689, 793, 973, 1807, 3233, 4823, 5551, 7367, 8479, 12649, 22631, 42029, 51569, 59353, 95771, 110227, 294203, 449387, 670397, 771589, 3145709, 5842031, 40894217]

約数ペア:

[(1, 40894217), (7, 5842031), (13, 3145709), (53, 771589), (61, 670397), (91, 449387), (139, 294203), (371, 110227), (427, 95771), (689, 59353), (793, 51569), (973, 42029), (1807, 22631), (3233, 12649), (4823, 8479), (5551, 7367)]