19874036

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{769}}^1$

素因数の和:864

約数の個数: 48

約数和(自身を含む): 43464960

約数和(自身を除く): 23590924

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 71, 91, 142, 182, 284, 364, 497, 769, 923, 994, 1538, 1846, 1988, 3076, 3692, 5383, 6461, 9997, 10766, 12922, 19994, 21532, 25844, 39988, 54599, 69979, 109198, 139958, 218396, 279916, 382193, 709787, 764386, 1419574, 1528772, 2839148, 4968509, 9937018, 19874036]

約数ペア:

[(1, 19874036), (2, 9937018), (4, 4968509), (7, 2839148), (13, 1528772), (14, 1419574), (26, 764386), (28, 709787), (52, 382193), (71, 279916), (91, 218396), (142, 139958), (182, 109198), (284, 69979), (364, 54599), (497, 39988), (769, 25844), (923, 21532), (994, 19994), (1538, 12922), (1846, 10766), (1988, 9997), (3076, 6461), (3692, 5383)]