20431726

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{10973}}^1$

素因数の和:11008

約数の個数: 24

約数和(自身を含む): 37531080

約数和(自身を除く): 17099354

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 133, 266, 931, 1862, 10973, 21946, 76811, 153622, 208487, 416974, 537677, 1075354, 1459409, 2918818, 10215863, 20431726]

約数ペア:

[(1, 20431726), (2, 10215863), (7, 2918818), (14, 1459409), (19, 1075354), (38, 537677), (49, 416974), (98, 208487), (133, 153622), (266, 76811), (931, 21946), (1862, 10973)]