19472453

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1$

素因数の和:442

約数の個数: 32

約数和(自身を含む): 26745600

約数和(自身を除く): 7273147

約数列:

[1, 7, 11, 13, 49, 77, 91, 143, 343, 397, 539, 637, 1001, 2779, 3773, 4367, 4459, 5161, 7007, 19453, 30569, 36127, 49049, 56771, 136171, 213983, 252889, 397397, 1497881, 1770223, 2781779, 19472453]

約数ペア:

[(1, 19472453), (7, 2781779), (11, 1770223), (13, 1497881), (49, 397397), (77, 252889), (91, 213983), (143, 136171), (343, 56771), (397, 49049), (539, 36127), (637, 30569), (1001, 19453), (2779, 7007), (3773, 5161), (4367, 4459)]