18945356

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{3511}}^1$

素因数の和:3605

約数の個数: 24

約数和(自身を含む): 35400960

約数和(自身を除く): 16455604

約数列:

[1, 2, 4, 19, 38, 71, 76, 142, 284, 1349, 2698, 3511, 5396, 7022, 14044, 66709, 133418, 249281, 266836, 498562, 997124, 4736339, 9472678, 18945356]

約数ペア:

[(1, 18945356), (2, 9472678), (4, 4736339), (19, 997124), (38, 498562), (71, 266836), (76, 249281), (142, 133418), (284, 66709), (1349, 14044), (2698, 7022), (3511, 5396)]