218924972

素因数分解:

$2^2\times 7^1\times {\mathrm{509}}^1\times {\mathrm{15361}}^1$

素因数の和:15881

約数の個数: 24

約数和(自身を含む): 438738720

約数和(自身を除く): 219813748

約数列:

[1, 2, 4, 7, 14, 28, 509, 1018, 2036, 3563, 7126, 14252, 15361, 30722, 61444, 107527, 215054, 430108, 7818749, 15637498, 31274996, 54731243, 109462486, 218924972]

約数ペア:

[(1, 218924972), (2, 109462486), (4, 54731243), (7, 31274996), (14, 15637498), (28, 7818749), (509, 430108), (1018, 215054), (2036, 107527), (3563, 61444), (7126, 30722), (14252, 15361)]