21245301

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^2\times {\mathrm{929}}^1$

素因数の和:967

約数の個数: 48

約数和(自身を含む): 39580800

約数和(自身を除く): 18335499

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 121, 189, 231, 297, 363, 693, 847, 929, 1089, 2079, 2541, 2787, 3267, 6503, 7623, 8361, 10219, 19509, 22869, 25083, 30657, 58527, 71533, 91971, 112409, 175581, 214599, 275913, 337227, 643797, 786863, 1011681, 1931391, 2360589, 3035043, 7081767, 21245301]

約数ペア:

[(1, 21245301), (3, 7081767), (7, 3035043), (9, 2360589), (11, 1931391), (21, 1011681), (27, 786863), (33, 643797), (63, 337227), (77, 275913), (99, 214599), (121, 175581), (189, 112409), (231, 91971), (297, 71533), (363, 58527), (693, 30657), (847, 25083), (929, 22869), (1089, 19509), (2079, 10219), (2541, 8361), (2787, 7623), (3267, 6503)]