28699139

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{277}}^1$

素因数の和:363

約数の個数: 24

約数和(自身を含む): 35588448

約数和(自身を除く): 6889309

約数列:

[1, 7, 19, 41, 133, 277, 287, 361, 779, 1939, 2527, 5263, 5453, 11357, 14801, 36841, 79499, 99997, 103607, 215783, 699979, 1510481, 4099877, 28699139]

約数ペア:

[(1, 28699139), (7, 4099877), (19, 1510481), (41, 699979), (133, 215783), (277, 103607), (287, 99997), (361, 79499), (779, 36841), (1939, 14801), (2527, 11357), (5263, 5453)]