19965729

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{23189}}^1$

素因数の和:23240

約数の個数: 16

約数和(自身を含む): 31167360

約数和(自身を除く): 11201631

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 23189, 69567, 162323, 486969, 950749, 2852247, 6655243, 19965729]

約数ペア:

[(1, 19965729), (3, 6655243), (7, 2852247), (21, 950749), (41, 486969), (123, 162323), (287, 69567), (861, 23189)]