25885251

素因数分解:

$3^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{643}}^1$

素因数の和:733

約数の個数: 40

約数和(自身を含む): 44884224

約数和(自身を除く): 18998973

約数列:

[1, 3, 7, 9, 21, 27, 63, 71, 81, 189, 213, 497, 567, 639, 643, 1491, 1917, 1929, 4473, 4501, 5751, 5787, 13419, 13503, 17361, 40257, 40509, 45653, 52083, 121527, 136959, 319571, 364581, 410877, 958713, 1232631, 2876139, 3697893, 8628417, 25885251]

約数ペア:

[(1, 25885251), (3, 8628417), (7, 3697893), (9, 2876139), (21, 1232631), (27, 958713), (63, 410877), (71, 364581), (81, 319571), (189, 136959), (213, 121527), (497, 52083), (567, 45653), (639, 40509), (643, 40257), (1491, 17361), (1917, 13503), (1929, 13419), (4473, 5787), (4501, 5751)]