18205558

素因数分解:

$2^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:277

約数の個数: 48

約数和(自身を含む): 34128864

約数和(自身を除く): 15923306

約数列:

[1, 2, 7, 14, 23, 41, 46, 49, 82, 98, 161, 197, 287, 322, 394, 574, 943, 1127, 1379, 1886, 2009, 2254, 2758, 4018, 4531, 6601, 8077, 9062, 9653, 13202, 16154, 19306, 31717, 46207, 56539, 63434, 92414, 113078, 185771, 222019, 371542, 395773, 444038, 791546, 1300397, 2600794, 9102779, 18205558]

約数ペア:

[(1, 18205558), (2, 9102779), (7, 2600794), (14, 1300397), (23, 791546), (41, 444038), (46, 395773), (49, 371542), (82, 222019), (98, 185771), (161, 113078), (197, 92414), (287, 63434), (322, 56539), (394, 46207), (574, 31717), (943, 19306), (1127, 16154), (1379, 13202), (1886, 9653), (2009, 9062), (2254, 8077), (2758, 6601), (4018, 4531)]