21045206

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{16519}}^1$

素因数の和:16548

約数の個数: 24

約数和(自身を含む): 39548880

約数和(自身を除く): 18503674

約数列:

[1, 2, 7, 13, 14, 26, 49, 91, 98, 182, 637, 1274, 16519, 33038, 115633, 214747, 231266, 429494, 809431, 1503229, 1618862, 3006458, 10522603, 21045206]

約数ペア:

[(1, 21045206), (2, 10522603), (7, 3006458), (13, 1618862), (14, 1503229), (26, 809431), (49, 429494), (91, 231266), (98, 214747), (182, 115633), (637, 33038), (1274, 16519)]