21616281

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1453}}^1$

素因数の和:1510

約数の個数: 32

約数和(自身を含む): 34896000

約数和(自身を除く): 13279719

約数列:

[1, 3, 9, 19, 27, 29, 57, 87, 171, 261, 513, 551, 783, 1453, 1653, 4359, 4959, 13077, 14877, 27607, 39231, 42137, 82821, 126411, 248463, 379233, 745389, 800603, 1137699, 2401809, 7205427, 21616281]

約数ペア:

[(1, 21616281), (3, 7205427), (9, 2401809), (19, 1137699), (27, 800603), (29, 745389), (57, 379233), (87, 248463), (171, 126411), (261, 82821), (513, 42137), (551, 39231), (783, 27607), (1453, 14877), (1653, 13077), (4359, 4959)]