21209646

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{66697}}^1$

素因数の和:66755

約数の個数: 16

約数和(自身を含む): 43220304

約数和(自身を除く): 22010658

約数列:

[1, 2, 3, 6, 53, 106, 159, 318, 66697, 133394, 200091, 400182, 3534941, 7069882, 10604823, 21209646]

約数ペア:

[(1, 21209646), (2, 10604823), (3, 7069882), (6, 3534941), (53, 400182), (106, 200091), (159, 133394), (318, 66697)]