21841450

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{277}}^1$

素因数の和:391

約数の個数: 48

約数和(自身を含む): 43434720

約数和(自身を除く): 21593270

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 83, 95, 166, 190, 277, 415, 475, 554, 830, 950, 1385, 1577, 2075, 2770, 3154, 4150, 5263, 6925, 7885, 10526, 13850, 15770, 22991, 26315, 39425, 45982, 52630, 78850, 114955, 131575, 229910, 263150, 436829, 574775, 873658, 1149550, 2184145, 4368290, 10920725, 21841450]

約数ペア:

[(1, 21841450), (2, 10920725), (5, 4368290), (10, 2184145), (19, 1149550), (25, 873658), (38, 574775), (50, 436829), (83, 263150), (95, 229910), (166, 131575), (190, 114955), (277, 78850), (415, 52630), (475, 45982), (554, 39425), (830, 26315), (950, 22991), (1385, 15770), (1577, 13850), (2075, 10526), (2770, 7885), (3154, 6925), (4150, 5263)]