208076781

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{271}}^1\times {\mathrm{439}}^1$

素因数の和:777

約数の個数: 32

約数和(自身を含む): 310210560

約数和(自身を除く): 102133779

約数列:

[1, 3, 11, 33, 53, 159, 271, 439, 583, 813, 1317, 1749, 2981, 4829, 8943, 14363, 14487, 23267, 43089, 69801, 118969, 157993, 255937, 356907, 473979, 767811, 1308659, 3925977, 6305357, 18916071, 69358927, 208076781]

約数ペア:

[(1, 208076781), (3, 69358927), (11, 18916071), (33, 6305357), (53, 3925977), (159, 1308659), (271, 767811), (439, 473979), (583, 356907), (813, 255937), (1317, 157993), (1749, 118969), (2981, 69801), (4829, 43089), (8943, 23267), (14363, 14487)]