21885633

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^3\times {\mathrm{29}}^1$

素因数の和:81

約数の個数: 80

約数和(自身を含む): 42514560

約数和(自身を除く): 20628927

約数列:

[1, 3, 7, 9, 11, 21, 27, 29, 33, 63, 77, 81, 87, 99, 121, 189, 203, 231, 261, 297, 319, 363, 567, 609, 693, 783, 847, 891, 957, 1089, 1331, 1827, 2079, 2233, 2349, 2541, 2871, 3267, 3509, 3993, 5481, 6237, 6699, 7623, 8613, 9317, 9801, 10527, 11979, 16443, 20097, 22869, 24563, 25839, 27951, 31581, 35937, 38599, 60291, 68607, 73689, 83853, 94743, 107811, 115797, 180873, 221067, 251559, 270193, 284229, 347391, 663201, 754677, 810579, 1042173, 1989603, 2431737, 3126519, 7295211, 21885633]

約数ペア:

[(1, 21885633), (3, 7295211), (7, 3126519), (9, 2431737), (11, 1989603), (21, 1042173), (27, 810579), (29, 754677), (33, 663201), (63, 347391), (77, 284229), (81, 270193), (87, 251559), (99, 221067), (121, 180873), (189, 115797), (203, 107811), (231, 94743), (261, 83853), (297, 73689), (319, 68607), (363, 60291), (567, 38599), (609, 35937), (693, 31581), (783, 27951), (847, 25839), (891, 24563), (957, 22869), (1089, 20097), (1331, 16443), (1827, 11979), (2079, 10527), (2233, 9801), (2349, 9317), (2541, 8613), (2871, 7623), (3267, 6699), (3509, 6237), (3993, 5481)]