20675349

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{7949}}^1$

素因数の和:7989

約数の個数: 18

約数和(自身を含む): 31728450

約数和(自身を除く): 11053101

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 7949, 23847, 71541, 135133, 405399, 1216197, 2297261, 6891783, 20675349]

約数ペア:

[(1, 20675349), (3, 6891783), (9, 2297261), (17, 1216197), (51, 405399), (153, 135133), (289, 71541), (867, 23847), (2601, 7949)]