20553559

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1297}}^1$

素因数の和:1386

約数の個数: 16

約数和(自身を含む): 23550912

約数和(自身を除く): 2997353

約数列:

[1, 13, 23, 53, 299, 689, 1219, 1297, 15847, 16861, 29831, 68741, 387803, 893633, 1581043, 20553559]

約数ペア:

[(1, 20553559), (13, 1581043), (23, 893633), (53, 387803), (299, 68741), (689, 29831), (1219, 16861), (1297, 15847)]