18987942

素因数分解:

$2^1\times 3^1\times {\mathrm{421}}^1\times {\mathrm{7517}}^1$

素因数の和:7943

約数の個数: 16

約数和(自身を含む): 38071152

約数和(自身を除く): 19083210

約数列:

[1, 2, 3, 6, 421, 842, 1263, 2526, 7517, 15034, 22551, 45102, 3164657, 6329314, 9493971, 18987942]

約数ペア:

[(1, 18987942), (2, 9493971), (3, 6329314), (6, 3164657), (421, 45102), (842, 22551), (1263, 15034), (2526, 7517)]