21421854

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{20879}}^1$

素因数の和:20909

約数の個数: 32

約数和(自身を含む): 50112000

約数和(自身を除く): 28690146

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 114, 171, 342, 513, 1026, 20879, 41758, 62637, 125274, 187911, 375822, 396701, 563733, 793402, 1127466, 1190103, 2380206, 3570309, 7140618, 10710927, 21421854]

約数ペア:

[(1, 21421854), (2, 10710927), (3, 7140618), (6, 3570309), (9, 2380206), (18, 1190103), (19, 1127466), (27, 793402), (38, 563733), (54, 396701), (57, 375822), (114, 187911), (171, 125274), (342, 62637), (513, 41758), (1026, 20879)]