201557781

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{1697}}^1$

素因数の和:1842

約数の個数: 32

約数和(自身を含む): 308085120

約数和(自身を除く): 106527339

約数列:

[1, 3, 9, 27, 53, 83, 159, 249, 477, 747, 1431, 1697, 2241, 4399, 5091, 13197, 15273, 39591, 45819, 89941, 118773, 140851, 269823, 422553, 809469, 1267659, 2428407, 3802977, 7465103, 22395309, 67185927, 201557781]

約数ペア:

[(1, 201557781), (3, 67185927), (9, 22395309), (27, 7465103), (53, 3802977), (83, 2428407), (159, 1267659), (249, 809469), (477, 422553), (747, 269823), (1431, 140851), (1697, 118773), (2241, 89941), (4399, 45819), (5091, 39591), (13197, 15273)]