18813686

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{13381}}^1$

素因数の和:13439

約数の個数: 16

約数和(自身を含む): 30510960

約数和(自身を除く): 11697274

約数列:

[1, 2, 19, 37, 38, 74, 703, 1406, 13381, 26762, 254239, 495097, 508478, 990194, 9406843, 18813686]

約数ペア:

[(1, 18813686), (2, 9406843), (19, 990194), (37, 508478), (38, 495097), (74, 254239), (703, 26762), (1406, 13381)]