19407195

素因数分解:

$3^5\times 5^1\times {\mathrm{15973}}^1$

素因数の和:15993

約数の個数: 24

約数和(自身を含む): 34887216

約数和(自身を除く): 15480021

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 15973, 47919, 79865, 143757, 239595, 431271, 718785, 1293813, 2156355, 3881439, 6469065, 19407195]

約数ペア:

[(1, 19407195), (3, 6469065), (5, 3881439), (9, 2156355), (15, 1293813), (27, 718785), (45, 431271), (81, 239595), (135, 143757), (243, 79865), (405, 47919), (1215, 15973)]