20937686

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1721}}^1$

素因数の和:1820

約数の個数: 32

約数和(自身を含む): 39674880

約数和(自身を除く): 18737194

約数列:

[1, 2, 7, 11, 14, 22, 77, 79, 154, 158, 553, 869, 1106, 1721, 1738, 3442, 6083, 12047, 12166, 18931, 24094, 37862, 132517, 135959, 265034, 271918, 951713, 1495549, 1903426, 2991098, 10468843, 20937686]

約数ペア:

[(1, 20937686), (2, 10468843), (7, 2991098), (11, 1903426), (14, 1495549), (22, 951713), (77, 271918), (79, 265034), (154, 135959), (158, 132517), (553, 37862), (869, 24094), (1106, 18931), (1721, 12166), (1738, 12047), (3442, 6083)]