21425426

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{51257}}^1$

素因数の和:51289

約数の個数: 16

約数和(自身を含む): 36905760

約数和(自身を除く): 15480334

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 51257, 102514, 563827, 973883, 1127654, 1947766, 10712713, 21425426]

約数ペア:

[(1, 21425426), (2, 10712713), (11, 1947766), (19, 1127654), (22, 973883), (38, 563827), (209, 102514), (418, 51257)]