19923071

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{647}}^1$

素因数の和:790

約数の個数: 16

約数和(自身を含む): 23514624

約数和(自身を除く): 3591553

約数列:

[1, 7, 53, 83, 371, 581, 647, 4399, 4529, 30793, 34291, 53701, 240037, 375907, 2846153, 19923071]

約数ペア:

[(1, 19923071), (7, 2846153), (53, 375907), (83, 240037), (371, 53701), (581, 34291), (647, 30793), (4399, 4529)]