18481671

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{419}}^1$

素因数の和:480

約数の個数: 36

約数和(自身を含む): 29975400

約数和(自身を除く): 11493729

約数列:

[1, 3, 9, 13, 29, 39, 87, 117, 169, 261, 377, 419, 507, 1131, 1257, 1521, 3393, 3771, 4901, 5447, 12151, 14703, 16341, 36453, 44109, 49023, 70811, 109359, 157963, 212433, 473889, 637299, 1421667, 2053519, 6160557, 18481671]

約数ペア:

[(1, 18481671), (3, 6160557), (9, 2053519), (13, 1421667), (29, 637299), (39, 473889), (87, 212433), (117, 157963), (169, 109359), (261, 70811), (377, 49023), (419, 44109), (507, 36453), (1131, 16341), (1257, 14703), (1521, 12151), (3393, 5447), (3771, 4901)]