21000765615

素因数分解:

$3^1\times 5^1\times {\mathrm{1747}}^1\times {\mathrm{801403}}^1$

素因数の和:803158

約数の個数: 16

約数和(自身を含む): 33620500608

約数和(自身を除く): 12619734993

約数列:

[1, 3, 5, 15, 1747, 5241, 8735, 26205, 801403, 2404209, 4007015, 12021045, 1400051041, 4200153123, 7000255205, 21000765615]

約数ペア:

[(1, 21000765615), (3, 7000255205), (5, 4200153123), (15, 1400051041), (1747, 12021045), (5241, 4007015), (8735, 2404209), (26205, 801403)]