28573321

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{653}}^1$

素因数の和:733

約数の個数: 24

約数和(自身を含む): 35786880

約数和(自身を除く): 7213559

約数列:

[1, 7, 19, 47, 49, 133, 329, 653, 893, 931, 2303, 4571, 6251, 12407, 30691, 31997, 43757, 86849, 214837, 583129, 607943, 1503859, 4081903, 28573321]

約数ペア:

[(1, 28573321), (7, 4081903), (19, 1503859), (47, 607943), (49, 583129), (133, 214837), (329, 86849), (653, 43757), (893, 31997), (931, 30691), (2303, 12407), (4571, 6251)]