28170585

素因数分解:

$3^4\times 5^1\times {\mathrm{69557}}^1$

素因数の和:69574

約数の個数: 20

約数和(自身を含む): 50499108

約数和(自身を除く): 22328523

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 69557, 208671, 347785, 626013, 1043355, 1878039, 3130065, 5634117, 9390195, 28170585]

約数ペア:

[(1, 28170585), (3, 9390195), (5, 5634117), (9, 3130065), (15, 1878039), (27, 1043355), (45, 626013), (81, 347785), (135, 208671), (405, 69557)]