20709247

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{1129}}^1$

素因数の和:1242

約数の個数: 16

約数和(自身を含む): 23919840

約数和(自身を除く): 3210593

約数列:

[1, 13, 17, 83, 221, 1079, 1129, 1411, 14677, 18343, 19193, 93707, 249509, 1218191, 1593019, 20709247]

約数ペア:

[(1, 20709247), (13, 1593019), (17, 1218191), (83, 249509), (221, 93707), (1079, 19193), (1129, 18343), (1411, 14677)]