18715353

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:301

約数の個数: 32

約数和(自身を含む): 27648000

約数和(自身を除く): 8932647

約数列:

[1, 3, 23, 29, 47, 69, 87, 141, 199, 597, 667, 1081, 1363, 2001, 3243, 4089, 4577, 5771, 9353, 13731, 17313, 28059, 31349, 94047, 132733, 215119, 271237, 398199, 645357, 813711, 6238451, 18715353]

約数ペア:

[(1, 18715353), (3, 6238451), (23, 813711), (29, 645357), (47, 398199), (69, 271237), (87, 215119), (141, 132733), (199, 94047), (597, 31349), (667, 28059), (1081, 17313), (1363, 13731), (2001, 9353), (3243, 5771), (4089, 4577)]