21620214

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{821}}^1$

素因数の和:866

約数の個数: 96

約数和(自身を含む): 61551360

約数和(自身を除く): 39931146

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 19, 21, 22, 33, 38, 42, 57, 63, 66, 77, 99, 114, 126, 133, 154, 171, 198, 209, 231, 266, 342, 399, 418, 462, 627, 693, 798, 821, 1197, 1254, 1386, 1463, 1642, 1881, 2394, 2463, 2926, 3762, 4389, 4926, 5747, 7389, 8778, 9031, 11494, 13167, 14778, 15599, 17241, 18062, 26334, 27093, 31198, 34482, 46797, 51723, 54186, 63217, 81279, 93594, 103446, 109193, 126434, 140391, 162558, 171589, 189651, 218386, 280782, 327579, 343178, 379302, 514767, 568953, 655158, 982737, 1029534, 1137906, 1201123, 1544301, 1965474, 2402246, 3088602, 3603369, 7206738, 10810107, 21620214]

約数ペア:

[(1, 21620214), (2, 10810107), (3, 7206738), (6, 3603369), (7, 3088602), (9, 2402246), (11, 1965474), (14, 1544301), (18, 1201123), (19, 1137906), (21, 1029534), (22, 982737), (33, 655158), (38, 568953), (42, 514767), (57, 379302), (63, 343178), (66, 327579), (77, 280782), (99, 218386), (114, 189651), (126, 171589), (133, 162558), (154, 140391), (171, 126434), (198, 109193), (209, 103446), (231, 93594), (266, 81279), (342, 63217), (399, 54186), (418, 51723), (462, 46797), (627, 34482), (693, 31198), (798, 27093), (821, 26334), (1197, 18062), (1254, 17241), (1386, 15599), (1463, 14778), (1642, 13167), (1881, 11494), (2394, 9031), (2463, 8778), (2926, 7389), (3762, 5747), (4389, 4926)]