21930172

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 43731072

約数和(自身を除く): 21800900

約数列:

[1, 2, 4, 11, 22, 43, 44, 67, 86, 134, 172, 173, 268, 346, 473, 692, 737, 946, 1474, 1892, 1903, 2881, 2948, 3806, 5762, 7439, 7612, 11524, 11591, 14878, 23182, 29756, 31691, 46364, 63382, 81829, 126764, 127501, 163658, 255002, 327316, 498413, 510004, 996826, 1993652, 5482543, 10965086, 21930172]

約数ペア:

[(1, 21930172), (2, 10965086), (4, 5482543), (11, 1993652), (22, 996826), (43, 510004), (44, 498413), (67, 327316), (86, 255002), (134, 163658), (172, 127501), (173, 126764), (268, 81829), (346, 63382), (473, 46364), (692, 31691), (737, 29756), (946, 23182), (1474, 14878), (1892, 11591), (1903, 11524), (2881, 7612), (2948, 7439), (3806, 5762)]