28921249

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{2153}}^1$

素因数の和:2280

約数の個数: 16

約数和(自身を含む): 35153280

約数和(自身を除く): 6232031

約数列:

[1, 7, 19, 101, 133, 707, 1919, 2153, 13433, 15071, 40907, 217453, 286349, 1522171, 4131607, 28921249]

約数ペア:

[(1, 28921249), (7, 4131607), (19, 1522171), (101, 286349), (133, 217453), (707, 40907), (1919, 15071), (2153, 13433)]