181509741

素因数分解:

$3^4\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2039}}^1$

素因数の和:2215

約数の個数: 40

約数和(自身を含む): 312005760

約数和(自身を除く): 130496019

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 157, 189, 471, 567, 1099, 1413, 2039, 3297, 4239, 6117, 9891, 12717, 14273, 18351, 29673, 42819, 55053, 89019, 128457, 165159, 320123, 385371, 960369, 1156113, 2240861, 2881107, 6722583, 8643321, 20167749, 25929963, 60503247, 181509741]

約数ペア:

[(1, 181509741), (3, 60503247), (7, 25929963), (9, 20167749), (21, 8643321), (27, 6722583), (63, 2881107), (81, 2240861), (157, 1156113), (189, 960369), (471, 385371), (567, 320123), (1099, 165159), (1413, 128457), (2039, 89019), (3297, 55053), (4239, 42819), (6117, 29673), (9891, 18351), (12717, 14273)]