20534871

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{4817}}^1$

素因数の和:4863

約数の個数: 24

約数和(自身を含む): 32955120

約数和(自身を除く): 12420249

約数列:

[1, 3, 7, 21, 29, 49, 87, 147, 203, 609, 1421, 4263, 4817, 14451, 33719, 101157, 139693, 236033, 419079, 708099, 977851, 2933553, 6844957, 20534871]

約数ペア:

[(1, 20534871), (3, 6844957), (7, 2933553), (21, 977851), (29, 708099), (49, 419079), (87, 236033), (147, 139693), (203, 101157), (609, 33719), (1421, 14451), (4263, 4817)]