3937005

素因数分解:

$3^4\times 5^1\times {\mathrm{9721}}^1$

素因数の和:9738

約数の個数: 20

約数和(自身を含む): 7058172

約数和(自身を除く): 3121167

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 9721, 29163, 48605, 87489, 145815, 262467, 437445, 787401, 1312335, 3937005]

約数ペア:

[(1, 3937005), (3, 1312335), (5, 787401), (9, 437445), (15, 262467), (27, 145815), (45, 87489), (81, 48605), (135, 29163), (405, 9721)]