15121215

素因数分解:

$3^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1109}}^1$

素因数の和:1224

約数の個数: 32

約数和(自身を含む): 27172800

約数和(自身を除く): 12051585

約数列:

[1, 3, 5, 9, 15, 27, 45, 101, 135, 303, 505, 909, 1109, 1515, 2727, 3327, 4545, 5545, 9981, 13635, 16635, 29943, 49905, 112009, 149715, 336027, 560045, 1008081, 1680135, 3024243, 5040405, 15121215]

約数ペア:

[(1, 15121215), (3, 5040405), (5, 3024243), (9, 1680135), (15, 1008081), (27, 560045), (45, 336027), (101, 149715), (135, 112009), (303, 49905), (505, 29943), (909, 16635), (1109, 13635), (1515, 9981), (2727, 5545), (3327, 4545)]