9789021

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:218

約数の個数: 36

約数和(自身を含む): 15872220

約数和(自身を除く): 6083199

約数列:

[1, 3, 9, 11, 33, 89, 99, 101, 121, 267, 303, 363, 801, 909, 979, 1089, 1111, 2937, 3333, 8811, 8989, 9999, 10769, 12221, 26967, 32307, 36663, 80901, 96921, 98879, 109989, 296637, 889911, 1087669, 3263007, 9789021]

約数ペア:

[(1, 9789021), (3, 3263007), (9, 1087669), (11, 889911), (33, 296637), (89, 109989), (99, 98879), (101, 96921), (121, 80901), (267, 36663), (303, 32307), (363, 26967), (801, 12221), (909, 10769), (979, 9999), (1089, 8989), (1111, 8811), (2937, 3333)]