18861886

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:276

約数の個数: 32

約数和(自身を含む): 30881088

約数和(自身を除く): 12019202

約数列:

[1, 2, 23, 41, 46, 73, 82, 137, 146, 274, 943, 1679, 1886, 2993, 3151, 3358, 5617, 5986, 6302, 10001, 11234, 20002, 68839, 129191, 137678, 230023, 258382, 410041, 460046, 820082, 9430943, 18861886]

約数ペア:

[(1, 18861886), (2, 9430943), (23, 820082), (41, 460046), (46, 410041), (73, 258382), (82, 230023), (137, 137678), (146, 129191), (274, 68839), (943, 20002), (1679, 11234), (1886, 10001), (2993, 6302), (3151, 5986), (3358, 5617)]