21348068

素因数分解:

$2^2\times 7^1\times {\mathrm{421}}^1\times {\mathrm{1811}}^1$

素因数の和:2243

約数の個数: 24

約数和(自身を含む): 42821184

約数和(自身を除く): 21473116

約数列:

[1, 2, 4, 7, 14, 28, 421, 842, 1684, 1811, 2947, 3622, 5894, 7244, 11788, 12677, 25354, 50708, 762431, 1524862, 3049724, 5337017, 10674034, 21348068]

約数ペア:

[(1, 21348068), (2, 10674034), (4, 5337017), (7, 3049724), (14, 1524862), (28, 762431), (421, 50708), (842, 25354), (1684, 12677), (1811, 11788), (2947, 7244), (3622, 5894)]