20297251

素因数分解:

${\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{331}}^1$

素因数の和:486

約数の個数: 16

約数和(自身を含む): 22589280

約数和(自身を除く): 2292029

約数列:

[1, 13, 53, 89, 331, 689, 1157, 4303, 4717, 17543, 29459, 61321, 228059, 382967, 1561327, 20297251]

約数ペア:

[(1, 20297251), (13, 1561327), (53, 382967), (89, 228059), (331, 61321), (689, 29459), (1157, 17543), (4303, 4717)]