21398504

素因数分解:

$2^3\times {\mathrm{563}}^1\times {\mathrm{4751}}^1$

素因数の和:5320

約数の個数: 16

約数和(自身を含む): 40201920

約数和(自身を除く): 18803416

約数列:

[1, 2, 4, 8, 563, 1126, 2252, 4504, 4751, 9502, 19004, 38008, 2674813, 5349626, 10699252, 21398504]

約数ペア:

[(1, 21398504), (2, 10699252), (4, 5349626), (8, 2674813), (563, 38008), (1126, 19004), (2252, 9502), (4504, 4751)]