27771681

素因数分解:

$3^1\times 7^3\times {\mathrm{137}}^1\times {\mathrm{197}}^1$

素因数の和:358

約数の個数: 32

約数和(自身を含む): 43718400

約数和(自身を除く): 15946719

約数列:

[1, 3, 7, 21, 49, 137, 147, 197, 343, 411, 591, 959, 1029, 1379, 2877, 4137, 6713, 9653, 20139, 26989, 28959, 46991, 67571, 80967, 140973, 188923, 202713, 566769, 1322461, 3967383, 9257227, 27771681]

約数ペア:

[(1, 27771681), (3, 9257227), (7, 3967383), (21, 1322461), (49, 566769), (137, 202713), (147, 188923), (197, 140973), (343, 80967), (411, 67571), (591, 46991), (959, 28959), (1029, 26989), (1379, 20139), (2877, 9653), (4137, 6713)]