19840527

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{10159}}^1$

素因数の和:10203

約数の個数: 24

約数和(自身を含む): 33812480

約数和(自身を除く): 13971953

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 10159, 30477, 71113, 91431, 213339, 314929, 640017, 944787, 2204503, 2834361, 6613509, 19840527]

約数ペア:

[(1, 19840527), (3, 6613509), (7, 2834361), (9, 2204503), (21, 944787), (31, 640017), (63, 314929), (93, 213339), (217, 91431), (279, 71113), (651, 30477), (1953, 10159)]