13972791

素因数分解:

$3^1\times 7^3\times {\mathrm{37}}^1\times {\mathrm{367}}^1$

素因数の和:428

約数の個数: 32

約数和(自身を含む): 22374400

約数和(自身を除く): 8401609

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 343, 367, 777, 1029, 1101, 1813, 2569, 5439, 7707, 12691, 13579, 17983, 38073, 40737, 53949, 95053, 125881, 285159, 377643, 665371, 1996113, 4657597, 13972791]

約数ペア:

[(1, 13972791), (3, 4657597), (7, 1996113), (21, 665371), (37, 377643), (49, 285159), (111, 125881), (147, 95053), (259, 53949), (343, 40737), (367, 38073), (777, 17983), (1029, 13579), (1101, 12691), (1813, 7707), (2569, 5439)]