21519302

素因数分解:

$2^1\times 7^1\times {\mathrm{971}}^1\times {\mathrm{1583}}^1$

素因数の和:2563

約数の個数: 16

約数和(自身を含む): 36951552

約数和(自身を除く): 15432250

約数列:

[1, 2, 7, 14, 971, 1583, 1942, 3166, 6797, 11081, 13594, 22162, 1537093, 3074186, 10759651, 21519302]

約数ペア:

[(1, 21519302), (2, 10759651), (7, 3074186), (14, 1537093), (971, 22162), (1583, 13594), (1942, 11081), (3166, 6797)]