21315686

素因数分解:

$2^1\times 7^2\times {\mathrm{199}}^1\times {\mathrm{1093}}^1$

素因数の和:1308

約数の個数: 24

約数和(自身を含む): 37414800

約数和(自身を除く): 16099114

約数列:

[1, 2, 7, 14, 49, 98, 199, 398, 1093, 1393, 2186, 2786, 7651, 9751, 15302, 19502, 53557, 107114, 217507, 435014, 1522549, 3045098, 10657843, 21315686]

約数ペア:

[(1, 21315686), (2, 10657843), (7, 3045098), (14, 1522549), (49, 435014), (98, 217507), (199, 107114), (398, 53557), (1093, 19502), (1393, 15302), (2186, 9751), (2786, 7651)]