21347253

素因数分解:

$3^3\times {\mathrm{439}}^1\times {\mathrm{1801}}^1$

素因数の和:2249

約数の個数: 16

約数和(自身を含む): 31715200

約数和(自身を除く): 10367947

約数列:

[1, 3, 9, 27, 439, 1317, 1801, 3951, 5403, 11853, 16209, 48627, 790639, 2371917, 7115751, 21347253]

約数ペア:

[(1, 21347253), (3, 7115751), (9, 2371917), (27, 790639), (439, 48627), (1317, 16209), (1801, 11853), (3951, 5403)]