21783944

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1301}}^1$

素因数の和:1350

約数の個数: 64

約数和(自身を含む): 52496640

約数和(自身を除く): 30712696

約数列:

[1, 2, 4, 7, 8, 13, 14, 23, 26, 28, 46, 52, 56, 91, 92, 104, 161, 182, 184, 299, 322, 364, 598, 644, 728, 1196, 1288, 1301, 2093, 2392, 2602, 4186, 5204, 8372, 9107, 10408, 16744, 16913, 18214, 29923, 33826, 36428, 59846, 67652, 72856, 118391, 119692, 135304, 209461, 236782, 239384, 388999, 418922, 473564, 777998, 837844, 947128, 1555996, 1675688, 2722993, 3111992, 5445986, 10891972, 21783944]

約数ペア:

[(1, 21783944), (2, 10891972), (4, 5445986), (7, 3111992), (8, 2722993), (13, 1675688), (14, 1555996), (23, 947128), (26, 837844), (28, 777998), (46, 473564), (52, 418922), (56, 388999), (91, 239384), (92, 236782), (104, 209461), (161, 135304), (182, 119692), (184, 118391), (299, 72856), (322, 67652), (364, 59846), (598, 36428), (644, 33826), (728, 29923), (1196, 18214), (1288, 16913), (1301, 16744), (2093, 10408), (2392, 9107), (2602, 8372), (4186, 5204)]