20868704

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{193}}^1$

素因数の和:343

約数の個数: 48

約数和(自身を含む): 43021440

約数和(自身を除く): 22152736

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 109, 124, 193, 218, 248, 386, 436, 496, 772, 872, 992, 1544, 1744, 3088, 3379, 3488, 5983, 6176, 6758, 11966, 13516, 21037, 23932, 27032, 42074, 47864, 54064, 84148, 95728, 108128, 168296, 191456, 336592, 652147, 673184, 1304294, 2608588, 5217176, 10434352, 20868704]

約数ペア:

[(1, 20868704), (2, 10434352), (4, 5217176), (8, 2608588), (16, 1304294), (31, 673184), (32, 652147), (62, 336592), (109, 191456), (124, 168296), (193, 108128), (218, 95728), (248, 84148), (386, 54064), (436, 47864), (496, 42074), (772, 27032), (872, 23932), (992, 21037), (1544, 13516), (1744, 11966), (3088, 6758), (3379, 6176), (3488, 5983)]