21000547647

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{786449}}^1$

素因数の和:786524

約数の個数: 32

約数和(自身を含む): 33219648000

約数和(自身を除く): 12219100353

約数列:

[1, 3, 9, 23, 27, 43, 69, 129, 207, 387, 621, 989, 1161, 2967, 8901, 26703, 786449, 2359347, 7078041, 18088327, 21234123, 33817307, 54264981, 101451921, 162794943, 304355763, 488384829, 777798061, 913067289, 2333394183, 7000182549, 21000547647]

約数ペア:

[(1, 21000547647), (3, 7000182549), (9, 2333394183), (23, 913067289), (27, 777798061), (43, 488384829), (69, 304355763), (129, 162794943), (207, 101451921), (387, 54264981), (621, 33817307), (989, 21234123), (1161, 18088327), (2967, 7078041), (8901, 2359347), (26703, 786449)]