21697899

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{7211}}^1$

素因数の和:7290

約数の個数: 16

約数和(自身を含む): 31155840

約数和(自身を除く): 9457941

約数列:

[1, 3, 17, 51, 59, 177, 1003, 3009, 7211, 21633, 122587, 367761, 425449, 1276347, 7232633, 21697899]

約数ペア:

[(1, 21697899), (3, 7232633), (17, 1276347), (51, 425449), (59, 367761), (177, 122587), (1003, 21633), (3009, 7211)]