21583221

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1187}}^1$

素因数の和:1249

約数の個数: 32

約数和(自身を含む): 34214400

約数和(自身を除く): 12631179

約数列:

[1, 3, 11, 19, 29, 33, 57, 87, 209, 319, 551, 627, 957, 1187, 1653, 3561, 6061, 13057, 18183, 22553, 34423, 39171, 67659, 103269, 248083, 378653, 654037, 744249, 1135959, 1962111, 7194407, 21583221]

約数ペア:

[(1, 21583221), (3, 7194407), (11, 1962111), (19, 1135959), (29, 744249), (33, 654037), (57, 378653), (87, 248083), (209, 103269), (319, 67659), (551, 39171), (627, 34423), (957, 22553), (1187, 18183), (1653, 13057), (3561, 6061)]