21071274

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{71671}}^1$

素因数の和:71690

約数の個数: 24

約数和(自身を含む): 49023648

約数和(自身を除く): 27952374

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 71671, 143342, 215013, 430026, 501697, 1003394, 1505091, 3010182, 3511879, 7023758, 10535637, 21071274]

約数ペア:

[(1, 21071274), (2, 10535637), (3, 7023758), (6, 3511879), (7, 3010182), (14, 1505091), (21, 1003394), (42, 501697), (49, 430026), (98, 215013), (147, 143342), (294, 71671)]