20342787

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{263}}^1$

素因数の和:367

約数の個数: 32

約数和(自身を含む): 30412800

約数和(自身を除く): 10070013

約数列:

[1, 3, 19, 23, 57, 59, 69, 177, 263, 437, 789, 1121, 1311, 1357, 3363, 4071, 4997, 6049, 14991, 15517, 18147, 25783, 46551, 77349, 114931, 294823, 344793, 356891, 884469, 1070673, 6780929, 20342787]

約数ペア:

[(1, 20342787), (3, 6780929), (19, 1070673), (23, 884469), (57, 356891), (59, 344793), (69, 294823), (177, 114931), (263, 77349), (437, 46551), (789, 25783), (1121, 18147), (1311, 15517), (1357, 14991), (3363, 6049), (4071, 4997)]