196991907

素因数分解:

$3^1\times 7^2\times {\mathrm{911}}^1\times {\mathrm{1471}}^1$

素因数の和:2399

約数の個数: 24

約数和(自身を含む): 306081792

約数和(自身を除く): 109089885

約数列:

[1, 3, 7, 21, 49, 147, 911, 1471, 2733, 4413, 6377, 10297, 19131, 30891, 44639, 72079, 133917, 216237, 1340081, 4020243, 9380567, 28141701, 65663969, 196991907]

約数ペア:

[(1, 196991907), (3, 65663969), (7, 28141701), (21, 9380567), (49, 4020243), (147, 1340081), (911, 216237), (1471, 133917), (2733, 72079), (4413, 44639), (6377, 30891), (10297, 19131)]