21691544

素因数分解:

$2^3\times 7^1\times {\mathrm{509}}^1\times {\mathrm{761}}^1$

素因数の和:1283

約数の個数: 32

約数和(自身を含む): 46634400

約数和(自身を除く): 24942856

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 509, 761, 1018, 1522, 2036, 3044, 3563, 4072, 5327, 6088, 7126, 10654, 14252, 21308, 28504, 42616, 387349, 774698, 1549396, 2711443, 3098792, 5422886, 10845772, 21691544]

約数ペア:

[(1, 21691544), (2, 10845772), (4, 5422886), (7, 3098792), (8, 2711443), (14, 1549396), (28, 774698), (56, 387349), (509, 42616), (761, 28504), (1018, 21308), (1522, 14252), (2036, 10654), (3044, 7126), (3563, 6088), (4072, 5327)]