18856552

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{311}}^1$

素因数の和:394

約数の個数: 64

約数和(自身を含む): 42456960

約数和(自身を除く): 23600408

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 53, 88, 104, 106, 143, 212, 286, 311, 424, 572, 583, 622, 689, 1144, 1166, 1244, 1378, 2332, 2488, 2756, 3421, 4043, 4664, 5512, 6842, 7579, 8086, 13684, 15158, 16172, 16483, 27368, 30316, 32344, 32966, 44473, 60632, 65932, 88946, 131864, 177892, 181313, 214279, 355784, 362626, 428558, 725252, 857116, 1450504, 1714232, 2357069, 4714138, 9428276, 18856552]

約数ペア:

[(1, 18856552), (2, 9428276), (4, 4714138), (8, 2357069), (11, 1714232), (13, 1450504), (22, 857116), (26, 725252), (44, 428558), (52, 362626), (53, 355784), (88, 214279), (104, 181313), (106, 177892), (143, 131864), (212, 88946), (286, 65932), (311, 60632), (424, 44473), (572, 32966), (583, 32344), (622, 30316), (689, 27368), (1144, 16483), (1166, 16172), (1244, 15158), (1378, 13684), (2332, 8086), (2488, 7579), (2756, 6842), (3421, 5512), (4043, 4664)]