25852281

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{337}}^1$

素因数の和:641

約数の個数: 32

約数和(自身を含む): 42701568

約数和(自身を除く): 16849287

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 281, 337, 843, 1011, 1967, 2359, 3653, 4381, 5901, 7077, 10959, 13143, 25571, 30667, 76713, 92001, 94697, 284091, 662879, 1231061, 1988637, 3693183, 8617427, 25852281]

約数ペア:

[(1, 25852281), (3, 8617427), (7, 3693183), (13, 1988637), (21, 1231061), (39, 662879), (91, 284091), (273, 94697), (281, 92001), (337, 76713), (843, 30667), (1011, 25571), (1967, 13143), (2359, 10959), (3653, 7077), (4381, 5901)]