21748454

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{397}}^1$

素因数の和:469

約数の個数: 48

約数和(自身を含む): 41923728

約数和(自身を除く): 20175274

約数列:

[1, 2, 7, 13, 14, 26, 43, 49, 86, 91, 98, 182, 301, 397, 559, 602, 637, 794, 1118, 1274, 2107, 2779, 3913, 4214, 5161, 5558, 7826, 10322, 17071, 19453, 27391, 34142, 36127, 38906, 54782, 72254, 119497, 221923, 238994, 252889, 443846, 505778, 836479, 1553461, 1672958, 3106922, 10874227, 21748454]

約数ペア:

[(1, 21748454), (2, 10874227), (7, 3106922), (13, 1672958), (14, 1553461), (26, 836479), (43, 505778), (49, 443846), (86, 252889), (91, 238994), (98, 221923), (182, 119497), (301, 72254), (397, 54782), (559, 38906), (602, 36127), (637, 34142), (794, 27391), (1118, 19453), (1274, 17071), (2107, 10322), (2779, 7826), (3913, 5558), (4214, 5161)]