21372486

素因数分解:

$2^1\times 3^1\times {\mathrm{421}}^1\times {\mathrm{8461}}^1$

素因数の和:8887

約数の個数: 16

約数和(自身を含む): 42851568

約数和(自身を除く): 21479082

約数列:

[1, 2, 3, 6, 421, 842, 1263, 2526, 8461, 16922, 25383, 50766, 3562081, 7124162, 10686243, 21372486]

約数ペア:

[(1, 21372486), (2, 10686243), (3, 7124162), (6, 3562081), (421, 50766), (842, 25383), (1263, 16922), (2526, 8461)]