21786333

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:277

約数の個数: 32

約数和(自身を含む): 32140800

約数和(自身を除く): 10354467

約数列:

[1, 3, 17, 47, 51, 61, 141, 149, 183, 447, 799, 1037, 2397, 2533, 2867, 3111, 7003, 7599, 8601, 9089, 21009, 27267, 48739, 119051, 146217, 154513, 357153, 427183, 463539, 1281549, 7262111, 21786333]

約数ペア:

[(1, 21786333), (3, 7262111), (17, 1281549), (47, 463539), (51, 427183), (61, 357153), (141, 154513), (149, 146217), (183, 119051), (447, 48739), (799, 27267), (1037, 21009), (2397, 9089), (2533, 8601), (2867, 7599), (3111, 7003)]