21115472

素因数分解:

$2^4\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1171}}^1$

素因数の和:1216

約数の個数: 60

約数和(自身を含む): 49702176

約数和(自身を除く): 28586704

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 49, 56, 92, 98, 112, 161, 184, 196, 322, 368, 392, 644, 784, 1127, 1171, 1288, 2254, 2342, 2576, 4508, 4684, 8197, 9016, 9368, 16394, 18032, 18736, 26933, 32788, 53866, 57379, 65576, 107732, 114758, 131152, 188531, 215464, 229516, 377062, 430928, 459032, 754124, 918064, 1319717, 1508248, 2639434, 3016496, 5278868, 10557736, 21115472]

約数ペア:

[(1, 21115472), (2, 10557736), (4, 5278868), (7, 3016496), (8, 2639434), (14, 1508248), (16, 1319717), (23, 918064), (28, 754124), (46, 459032), (49, 430928), (56, 377062), (92, 229516), (98, 215464), (112, 188531), (161, 131152), (184, 114758), (196, 107732), (322, 65576), (368, 57379), (392, 53866), (644, 32788), (784, 26933), (1127, 18736), (1171, 18032), (1288, 16394), (2254, 9368), (2342, 9016), (2576, 8197), (4508, 4684)]