20853357

素因数分解:

$3^1\times 7^1\times {\mathrm{577}}^1\times {\mathrm{1721}}^1$

素因数の和:2308

約数の個数: 16

約数和(自身を含む): 31850112

約数和(自身を除く): 10996755

約数列:

[1, 3, 7, 21, 577, 1721, 1731, 4039, 5163, 12047, 12117, 36141, 993017, 2979051, 6951119, 20853357]

約数ペア:

[(1, 20853357), (3, 6951119), (7, 2979051), (21, 993017), (577, 36141), (1721, 12117), (1731, 12047), (4039, 5163)]