21000388718

素因数分解:

$2^1\times {\mathrm{1511}}^1\times {\mathrm{2339}}^1\times {\mathrm{2971}}^1$

素因数の和:6823

約数の個数: 16

約数和(自身を含む): 31545521280

約数和(自身を除く): 10545132562

約数列:

[1, 2, 1511, 2339, 2971, 3022, 4678, 5942, 3534229, 4489181, 6949169, 7068458, 8978362, 13898338, 10500194359, 21000388718]

約数ペア:

[(1, 21000388718), (2, 10500194359), (1511, 13898338), (2339, 8978362), (2971, 7068458), (3022, 6949169), (4678, 4489181), (5942, 3534229)]