81555417

素因数分解:

$3^7\times {\mathrm{89}}^1\times {\mathrm{419}}^1$

素因数の和:529

約数の個数: 32

約数和(自身を含む): 123984000

約数和(自身を除く): 42428583

約数列:

[1, 3, 9, 27, 81, 89, 243, 267, 419, 729, 801, 1257, 2187, 2403, 3771, 7209, 11313, 21627, 33939, 37291, 64881, 101817, 111873, 194643, 305451, 335619, 916353, 1006857, 3020571, 9061713, 27185139, 81555417]

約数ペア:

[(1, 81555417), (3, 27185139), (9, 9061713), (27, 3020571), (81, 1006857), (89, 916353), (243, 335619), (267, 305451), (419, 194643), (729, 111873), (801, 101817), (1257, 64881), (2187, 37291), (2403, 33939), (3771, 21627), (7209, 11313)]