28771257

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{271}}^1\times {\mathrm{823}}^1$

素因数の和:1140

約数の個数: 16

約数和(自身を含む): 39446528

約数和(自身を除く): 10675271

約数列:

[1, 3, 43, 129, 271, 813, 823, 2469, 11653, 34959, 35389, 106167, 223033, 669099, 9590419, 28771257]

約数ペア:

[(1, 28771257), (3, 9590419), (43, 669099), (129, 223033), (271, 106167), (813, 35389), (823, 34959), (2469, 11653)]