20753993

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{271}}^1$

素因数の和:464

約数の個数: 16

約数和(自身を含む): 23122176

約数和(自身を除く): 2368183

約数列:

[1, 13, 43, 137, 271, 559, 1781, 3523, 5891, 11653, 37127, 76583, 151489, 482651, 1596461, 20753993]

約数ペア:

[(1, 20753993), (13, 1596461), (43, 482651), (137, 151489), (271, 76583), (559, 37127), (1781, 11653), (3523, 5891)]