19847205

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{9001}}^1$

素因数の和:9026

約数の個数: 36

約数和(自身を含む): 40022892

約数和(自身を除く): 20175687

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 2205, 9001, 27003, 45005, 63007, 81009, 135015, 189021, 315035, 405045, 441049, 567063, 945105, 1323147, 2205245, 2835315, 3969441, 6615735, 19847205]

約数ペア:

[(1, 19847205), (3, 6615735), (5, 3969441), (7, 2835315), (9, 2205245), (15, 1323147), (21, 945105), (35, 567063), (45, 441049), (49, 405045), (63, 315035), (105, 189021), (147, 135015), (245, 81009), (315, 63007), (441, 45005), (735, 27003), (2205, 9001)]