21498939

素因数分解:

$3^6\times 7^1\times {\mathrm{11}}^1\times {\mathrm{383}}^1$

素因数の和:419

約数の個数: 56

約数和(自身を含む): 40292352

約数和(自身を除く): 18793413

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 81, 99, 189, 231, 243, 297, 383, 567, 693, 729, 891, 1149, 1701, 2079, 2673, 2681, 3447, 4213, 5103, 6237, 8019, 8043, 10341, 12639, 18711, 24129, 29491, 31023, 37917, 56133, 72387, 88473, 93069, 113751, 217161, 265419, 279207, 341253, 651483, 796257, 1023759, 1954449, 2388771, 3071277, 7166313, 21498939]

約数ペア:

[(1, 21498939), (3, 7166313), (7, 3071277), (9, 2388771), (11, 1954449), (21, 1023759), (27, 796257), (33, 651483), (63, 341253), (77, 279207), (81, 265419), (99, 217161), (189, 113751), (231, 93069), (243, 88473), (297, 72387), (383, 56133), (567, 37917), (693, 31023), (729, 29491), (891, 24129), (1149, 18711), (1701, 12639), (2079, 10341), (2673, 8043), (2681, 8019), (3447, 6237), (4213, 5103)]