27988996

素因数分解:

$2^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{2341}}^1$

素因数の和:2420

約数の個数: 36

約数和(自身を含む): 57936396

約数和(自身を除く): 29947400

約数列:

[1, 2, 4, 7, 14, 28, 49, 61, 98, 122, 196, 244, 427, 854, 1708, 2341, 2989, 4682, 5978, 9364, 11956, 16387, 32774, 65548, 114709, 142801, 229418, 285602, 458836, 571204, 999607, 1999214, 3998428, 6997249, 13994498, 27988996]

約数ペア:

[(1, 27988996), (2, 13994498), (4, 6997249), (7, 3998428), (14, 1999214), (28, 999607), (49, 571204), (61, 458836), (98, 285602), (122, 229418), (196, 142801), (244, 114709), (427, 65548), (854, 32774), (1708, 16387), (2341, 11956), (2989, 9364), (4682, 5978)]