21361844

素因数分解:

$2^2\times 7^2\times {\mathrm{73}}^1\times {\mathrm{1493}}^1$

素因数の和:1584

約数の個数: 36

約数和(自身を含む): 44111844

約数和(自身を除く): 22750000

約数列:

[1, 2, 4, 7, 14, 28, 49, 73, 98, 146, 196, 292, 511, 1022, 1493, 2044, 2986, 3577, 5972, 7154, 10451, 14308, 20902, 41804, 73157, 108989, 146314, 217978, 292628, 435956, 762923, 1525846, 3051692, 5340461, 10680922, 21361844]

約数ペア:

[(1, 21361844), (2, 10680922), (4, 5340461), (7, 3051692), (14, 1525846), (28, 762923), (49, 435956), (73, 292628), (98, 217978), (146, 146314), (196, 108989), (292, 73157), (511, 41804), (1022, 20902), (1493, 14308), (2044, 10451), (2986, 7154), (3577, 5972)]