18439812

素因数分解:

$2^2\times 3^5\times {\mathrm{61}}^1\times {\mathrm{311}}^1$

素因数の和:391

約数の個数: 72

約数和(自身を含む): 49288512

約数和(自身を除く): 30848700

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 61, 81, 108, 122, 162, 183, 243, 244, 311, 324, 366, 486, 549, 622, 732, 933, 972, 1098, 1244, 1647, 1866, 2196, 2799, 3294, 3732, 4941, 5598, 6588, 8397, 9882, 11196, 14823, 16794, 18971, 19764, 25191, 29646, 33588, 37942, 50382, 56913, 59292, 75573, 75884, 100764, 113826, 151146, 170739, 227652, 302292, 341478, 512217, 682956, 1024434, 1536651, 2048868, 3073302, 4609953, 6146604, 9219906, 18439812]

約数ペア:

[(1, 18439812), (2, 9219906), (3, 6146604), (4, 4609953), (6, 3073302), (9, 2048868), (12, 1536651), (18, 1024434), (27, 682956), (36, 512217), (54, 341478), (61, 302292), (81, 227652), (108, 170739), (122, 151146), (162, 113826), (183, 100764), (243, 75884), (244, 75573), (311, 59292), (324, 56913), (366, 50382), (486, 37942), (549, 33588), (622, 29646), (732, 25191), (933, 19764), (972, 18971), (1098, 16794), (1244, 14823), (1647, 11196), (1866, 9882), (2196, 8397), (2799, 6588), (3294, 5598), (3732, 4941)]