28730457

素因数分解:

$3^4\times 7^1\times {\mathrm{50671}}^1$

素因数の和:50690

約数の個数: 20

約数和(自身を含む): 49050496

約数和(自身を除く): 20320039

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 50671, 152013, 354697, 456039, 1064091, 1368117, 3192273, 4104351, 9576819, 28730457]

約数ペア:

[(1, 28730457), (3, 9576819), (7, 4104351), (9, 3192273), (21, 1368117), (27, 1064091), (63, 456039), (81, 354697), (189, 152013), (567, 50671)]