19121648

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{571}}^1$

素因数の和:622

約数の個数: 80

約数和(自身を含む): 47663616

約数和(自身を除く): 28541968

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 23, 26, 28, 46, 52, 56, 91, 92, 104, 112, 161, 182, 184, 208, 299, 322, 364, 368, 571, 598, 644, 728, 1142, 1196, 1288, 1456, 2093, 2284, 2392, 2576, 3997, 4186, 4568, 4784, 7423, 7994, 8372, 9136, 13133, 14846, 15988, 16744, 26266, 29692, 31976, 33488, 51961, 52532, 59384, 63952, 91931, 103922, 105064, 118768, 170729, 183862, 207844, 210128, 341458, 367724, 415688, 682916, 735448, 831376, 1195103, 1365832, 1470896, 2390206, 2731664, 4780412, 9560824, 19121648]

約数ペア:

[(1, 19121648), (2, 9560824), (4, 4780412), (7, 2731664), (8, 2390206), (13, 1470896), (14, 1365832), (16, 1195103), (23, 831376), (26, 735448), (28, 682916), (46, 415688), (52, 367724), (56, 341458), (91, 210128), (92, 207844), (104, 183862), (112, 170729), (161, 118768), (182, 105064), (184, 103922), (208, 91931), (299, 63952), (322, 59384), (364, 52532), (368, 51961), (571, 33488), (598, 31976), (644, 29692), (728, 26266), (1142, 16744), (1196, 15988), (1288, 14846), (1456, 13133), (2093, 9136), (2284, 8372), (2392, 7994), (2576, 7423), (3997, 4784), (4186, 4568)]