21000688785

素因数分解:

$3^2\times 5^1\times {\mathrm{467}}^1\times {\mathrm{641}}^1\times {\mathrm{1559}}^1$

素因数の和:2678

約数の個数: 48

約数和(自身を含む): 36559486080

約数和(自身を除く): 15558797295

約数列:

[1, 3, 5, 9, 15, 45, 467, 641, 1401, 1559, 1923, 2335, 3205, 4203, 4677, 5769, 7005, 7795, 9615, 14031, 21015, 23385, 28845, 70155, 299347, 728053, 898041, 999319, 1496735, 2184159, 2694123, 2997957, 3640265, 4490205, 4996595, 6552477, 8993871, 10920795, 13470615, 14989785, 32762385, 44969355, 466681973, 1400045919, 2333409865, 4200137757, 7000229595, 21000688785]

約数ペア:

[(1, 21000688785), (3, 7000229595), (5, 4200137757), (9, 2333409865), (15, 1400045919), (45, 466681973), (467, 44969355), (641, 32762385), (1401, 14989785), (1559, 13470615), (1923, 10920795), (2335, 8993871), (3205, 6552477), (4203, 4996595), (4677, 4490205), (5769, 3640265), (7005, 2997957), (7795, 2694123), (9615, 2184159), (14031, 1496735), (21015, 999319), (23385, 898041), (28845, 728053), (70155, 299347)]