21159944

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{203461}}^1$

素因数の和:203480

約数の個数: 16

約数和(自身を含む): 42727020

約数和(自身を除く): 21567076

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 203461, 406922, 813844, 1627688, 2644993, 5289986, 10579972, 21159944]

約数ペア:

[(1, 21159944), (2, 10579972), (4, 5289986), (8, 2644993), (13, 1627688), (26, 813844), (52, 406922), (104, 203461)]