21799681270

素因数分解:

$2^1\times 5^1\times {\mathrm{3361}}^1\times {\mathrm{648607}}^1$

素因数の和:651975

約数の個数: 16

約数和(自身を含む): 39251161728

約数和(自身を除く): 17451480458

約数列:

[1, 2, 5, 10, 3361, 6722, 16805, 33610, 648607, 1297214, 3243035, 6486070, 2179968127, 4359936254, 10899840635, 21799681270]

約数ペア:

[(1, 21799681270), (2, 10899840635), (5, 4359936254), (10, 2179968127), (3361, 6486070), (6722, 3243035), (16805, 1297214), (33610, 648607)]