28680891

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{293}}^1\times {\mathrm{487}}^1$

素因数の和:850

約数の個数: 16

約数和(自身を含む): 39024384

約数和(自身を除く): 10343493

約数列:

[1, 3, 67, 201, 293, 487, 879, 1461, 19631, 32629, 58893, 97887, 142691, 428073, 9560297, 28680891]

約数ペア:

[(1, 28680891), (3, 9560297), (67, 428073), (201, 142691), (293, 97887), (487, 58893), (879, 32629), (1461, 19631)]