25660719

素因数分解:

$3^4\times 7^1\times {\mathrm{167}}^1\times {\mathrm{271}}^1$

素因数の和:457

約数の個数: 40

約数和(自身を含む): 44233728

約数和(自身を除く): 18573009

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 167, 189, 271, 501, 567, 813, 1169, 1503, 1897, 2439, 3507, 4509, 5691, 7317, 10521, 13527, 17073, 21951, 31563, 45257, 51219, 94689, 135771, 153657, 316799, 407313, 950397, 1221939, 2851191, 3665817, 8553573, 25660719]

約数ペア:

[(1, 25660719), (3, 8553573), (7, 3665817), (9, 2851191), (21, 1221939), (27, 950397), (63, 407313), (81, 316799), (167, 153657), (189, 135771), (271, 94689), (501, 51219), (567, 45257), (813, 31563), (1169, 21951), (1503, 17073), (1897, 13527), (2439, 10521), (3507, 7317), (4509, 5691)]