21755247

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{6469}}^1$

素因数の和:6550

約数の個数: 16

約数和(自身を含む): 31056000

約数和(自身を除く): 9300753

約数列:

[1, 3, 19, 57, 59, 177, 1121, 3363, 6469, 19407, 122911, 368733, 381671, 1145013, 7251749, 21755247]

約数ペア:

[(1, 21755247), (3, 7251749), (19, 1145013), (57, 381671), (59, 368733), (177, 122911), (1121, 19407), (3363, 6469)]