28979503

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1999}}^1$

素因数の和:2134

約数の個数: 16

約数和(自身を含む): 35200000

約数和(自身を除く): 6220497

約数列:

[1, 7, 19, 109, 133, 763, 1999, 2071, 13993, 14497, 37981, 217891, 265867, 1525237, 4139929, 28979503]

約数ペア:

[(1, 28979503), (7, 4139929), (19, 1525237), (109, 265867), (133, 217891), (763, 37981), (1999, 14497), (2071, 13993)]