21664566

素因数分解:

$2^1\times 3^2\times 7^3\times {\mathrm{11}}^2\times {\mathrm{29}}^1$

素因数の和:80

約数の個数: 144

約数和(自身を含む): 62244000

約数和(自身を除く): 40579434

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 29, 33, 42, 49, 58, 63, 66, 77, 87, 98, 99, 121, 126, 147, 154, 174, 198, 203, 231, 242, 261, 294, 319, 343, 363, 406, 441, 462, 522, 539, 609, 638, 686, 693, 726, 847, 882, 957, 1029, 1078, 1089, 1218, 1386, 1421, 1617, 1694, 1827, 1914, 2058, 2178, 2233, 2541, 2842, 2871, 3087, 3234, 3509, 3654, 3773, 4263, 4466, 4851, 5082, 5742, 5929, 6174, 6699, 7018, 7546, 7623, 8526, 9702, 9947, 10527, 11319, 11858, 12789, 13398, 15246, 15631, 17787, 19894, 20097, 21054, 22638, 24563, 25578, 29841, 31262, 31581, 33957, 35574, 40194, 41503, 46893, 49126, 53361, 59682, 63162, 67914, 73689, 83006, 89523, 93786, 106722, 109417, 124509, 140679, 147378, 171941, 179046, 218834, 221067, 249018, 281358, 328251, 343882, 373527, 442134, 515823, 656502, 747054, 984753, 1031646, 1203587, 1547469, 1969506, 2407174, 3094938, 3610761, 7221522, 10832283, 21664566]

約数ペア:

[(1, 21664566), (2, 10832283), (3, 7221522), (6, 3610761), (7, 3094938), (9, 2407174), (11, 1969506), (14, 1547469), (18, 1203587), (21, 1031646), (22, 984753), (29, 747054), (33, 656502), (42, 515823), (49, 442134), (58, 373527), (63, 343882), (66, 328251), (77, 281358), (87, 249018), (98, 221067), (99, 218834), (121, 179046), (126, 171941), (147, 147378), (154, 140679), (174, 124509), (198, 109417), (203, 106722), (231, 93786), (242, 89523), (261, 83006), (294, 73689), (319, 67914), (343, 63162), (363, 59682), (406, 53361), (441, 49126), (462, 46893), (522, 41503), (539, 40194), (609, 35574), (638, 33957), (686, 31581), (693, 31262), (726, 29841), (847, 25578), (882, 24563), (957, 22638), (1029, 21054), (1078, 20097), (1089, 19894), (1218, 17787), (1386, 15631), (1421, 15246), (1617, 13398), (1694, 12789), (1827, 11858), (1914, 11319), (2058, 10527), (2178, 9947), (2233, 9702), (2541, 8526), (2842, 7623), (2871, 7546), (3087, 7018), (3234, 6699), (3509, 6174), (3654, 5929), (3773, 5742), (4263, 5082), (4466, 4851)]