19771973

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{743}}^1$

素因数の和:868

約数の個数: 16

約数和(自身を含む): 22498560

約数和(自身を除く): 2726587

約数列:

[1, 13, 23, 89, 299, 743, 1157, 2047, 9659, 17089, 26611, 66127, 222157, 859651, 1520921, 19771973]

約数ペア:

[(1, 19771973), (13, 1520921), (23, 859651), (89, 222157), (299, 66127), (743, 26611), (1157, 17089), (2047, 9659)]